Road Rage Free Essays

A coin is tossed four times. The probability is ? or 0. 25 that all four tosses will result in a head face up. We will write a custom essay sample on Road Rage or any similar topic only for you Order Now Answer Correct Answer: False A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work? Correct Answer: 0. 20 A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. What is the probability that the first person selected is classified as a maintenance employee? Correct Answer: 0. 025 A probability is a number from -1 to +1. Correct Answer: False When are two events mutually exclusive? Correct Answer: If one event occurs, then the other cannot There are 10 rolls of film in a box and 3 are defective. Two rolls are selected without replacement. What is the probability of selecting a defective roll followed by another defective roll? Correct Answer: 1/15 or about 0. 07 Three defective electric toothbrushes were accidentally shipped to a drugstore by the manufacturer along with 17 non-defective ones. What is the probability that the first two electric toothbrushes sold will be returned to the drugstore because they are defective? Correct Answer: 3/190 or 0. 01579 The first card selected from a standard 52-card deck was a king. If it is NOT returned to the deck, what is the probability that a king will be drawn on the second selection? Correct Answer: 3/51 or 0. 0588 The first card selected from a standard 52-card deck was a king. If it is returned to the deck, what is the probability that a king will be drawn on the second selection? Correct Answer: 1/13 or 0. 077 If there are ‘m’ ways of doing one thing and ‘n’ ways of doing another thing, the multiplication formula states that there are (m) †¢ (n) ways of doing both. Correct Answer: True A study by the National Park Service revealed that 50% of the vacationers going to the Rocky Mountain region visit Yellowstone Park, 40% visit the Grand Tetons and 35% visit both. What is the probability that a vacationer will visit at least one of these magnificent attractions? Correct Answer: 0 The closer a probability is to 0, the more likely the event will happen. Correct Answer: False The classical approach to probability requires that the outcomes of an experiment are not equally likely. Correct Answer: False The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse, size medium. The code group 2031 might identify a pair of pants, size 18, and so on. Repetitions of numbers are not permitted, i. e. , the same number cannot be used more than once in a total sequence. As examples, 2256, 2562 or 5559 would not be permitted. How many different code groups can be designed? Correct Answer: 5,040 A discrete random variable can have only certain clearly separated values. Correct Answer: True A listing of all possible outcomes of an experiment and their corresponding probability of occurrence is called a _____________. Correct Answer: Probability distribution A statistics professor receives an average of five e-mail messages per day from students. Assume the number of messages approximates a Poisson distribution. What is the probability that on a randomly selected day she will have five messages? Correct Answer: 0. 175 David’s gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period twenty-five customers buy gasoline at this station. What is the probability that more than ten and less than fifteen customers pay in cash? Correct Answer: 0. 380 David’s gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period twenty-five customers buy gasoline at this station. What is the probability that at least ten pay in cash? Correct Answer: 0. 575 Which of the following is NOT a characteristic of a binomial probability distribution? Correct Answer: Each outcome results from two trials The weight of an offensive linesman may be 205. 15 pounds, 210. 23 pounds, 225. 05 pounds or 219. 14 pounds. What is this an illustration of? Correct Answer: Continuous random variable The variance of a binomial distribution is found by ? ? (1 – ? ). Correct Answer: True The mean of a binomial distribution is the product of n and ?. Correct Answer: True A true-false test consists of six questions. If you guess the answer to each question, what is the probability of getting all six questions correct? Correct Answer: 0. 016 How to cite Road Rage, Papers

Investigations Essay Example For Students

Investigations Essay 1.List at least two of the six different human sources of DNA material identified in Chapter 1. (Answer)Two of them would be blood and tooth pulp. 2.Who is given credit for establishing the London Metropolitian Police Force. (Answer)The Credit was given to a Sir Robert Peel. 3.What is a Search Warrant?(Answer)It is a written order, in the name of the state, signed by a judicial officer, exercising proper authority, and directing a law enforcement officer to search for certain specific property and bring it before the court. 4.What is the fruits of the poisonous tree doctrine?(Answer)Its a doctrine that states any evidence obtained from a illegal search and seizure is inadmissible in court. 5.When can legal searches and seizures be made by law enforcement officers?(Answer)They can be used when a warrant has been issued, with consent, if its incident to an arrest, automobile (exception), and in an emergency (exigent circumstances). 6.What are the three essential ingredients of arrest?(Answer)The 3 ingredients of arrest are Intention, Authority, and Custody. 7.What is substantive criminal law?(Answer)Substantive Criminal Law is the branch of criminal law dealing with the elements that describe and define a crime. 8.What is procedural Criminal law?(Answer)Procedural Criminal Law is the branch of criminal law that defines what can and cannot be done with, or to, people. 9.Define stop and frisk.(Answer)A stop and frisk is a limited pat down of the outer clothing of a person encountered by a law enforcement officer when the person is acting suspiciously, and the officer, concerned about safety, seeks to determine if the person has a weapon. 10.What is an arrest warrant?(Answer)A judicial order commanding that a particular person be arrested and brought before a court to answer a criminal charge.

Motion Down a Slope Essay Example

Motion Down a Slope Essay There are a number of things that affect the acceleration of the marble:- Angle/Gradient of slope. Changing the angle of the slope would affect the acceleration of the squash ball as it changes the energy the marble starts with as steeper angles raise the slope start higher so the marble would have more potential energy.- Mass of marble. Changing the mass of the marble would affect the acceleration because it means it has more energy pulling it downwards and so would accelerate faster.- Surface. Changing the surface may change the amount of friction between the slope and the marble. This would affect the amount of energy absorbed. If there was more friction then more energy is absorbed so the marble has less pushing it along and so accelerates slower.- Gravity. A change in the gravity would change the amount of energy pulling down the marble and so change the amount of energy pushing it along and so change the acceleration of the marble.- Aerodynamics. A change in the aerodynamics wo uld create a change in the air friction. This would change the amount of energy absorbed and so change the amount of energy left pushing it along changing the acceleration.I am going to investigate the angle of slope. The other variables must be kept the same. I will use the same marble so that the aerodynamics and mass of the marble stay the same. I will do the experiment in the same place every time and on the same slope so that the gravity and friction will remain relatively constant. This makes the investigation a fairer test.Measuring Acceleration:Acceleration cannot be measured directly. It has to be derived from other measurements. The measurements required are starting speed, distance and time.I will use the formula: S=UT+0.5AT2S = Distance (m) S=0T+0.5AT2U = Initial speed=0 every time S=0.5AT2T = Time (sec) 2S=AT2A = Acceleration 2S/T2=AA=2S/T2Method:Set up the equipment as shown above. Place the marble at the top of the slope. Start the stopwatch at the same time as you re lease the marble and then stop the watch when it reaches the end. Do this 3 times and take the average speed to try to remove anomalous results. Repeat with the slope at: 10o, 20 o, 30 o, 40 o, 50 o, 60 o, 70 o, 80 o, and 90 o.Use the formula: Sin (Angle needed) x Lengthto find the height the slope must be to make it the required angle. This will make the angles more accurate.Heights of top of slopes for required angles:10 o = Sin 10 x 150 = 26cm 20 o = Sin 20 x 150 = 51cm30 o = Sin 30 x 150 = 75cm 40 o = Sin 40 x 150 = 96cm50 o = Sin 50 x 150 = 115cm 60 o = Sin 60 x 150 = 130cm70 o = Sin 70 x 150 = 141cm 80 o = Sin 80 x 150 = 148cm90 o = Sin 90 x 150 = 150cmSafety Issues:There are no safety issues involved in this experiment.Prediction:I predict that the steeper the slope the faster the acceleration. This is because the steeper the angle the higher the marble starts and so the more potential energy it has. More potential energy means that when it is released it will have more kinet ic energy and so can accelerate quicker. Also the steeper the slope the less the marble is being pushed into the slope by gravity so there is less friction between the marble and slope.9.81 x Sin angle = Acceleration9.81 x Sin 90 = Acceleration9.81 x 1 = 9.81m/sI also predict, using the formula above, that the marble will not accelerate faster than 9.81m/s. This is the maximum acceleration of the marble. This is due to the fact that this is the acceleration is if the marble was dropped 150cm at 90? without any frictional or rotational effects. As we are working with friction the marble should always be slower. As the angles get nearer 90? the acceleration should begin to level off. This is because the later angles will not raise the height of the board and marble as much as the earlier angles so the marble will not be getting such a high increase in energy towards 90?. I predict that the formula 9.81 x Sin angle = Acceleration gives the exact acceleration of the marble.I predict my graph will look like this:This is because the marbles acceleration is increasing as the slope angle rises and then it levels off before reaching 9.81m/s.Results:Angle of SlopeHeight of Slope(cm)Time taken for marble to roll down slope (sec)(?)12345Average10261.481.501.491.511.491.4920511.141.121.111.101.161.1330751.091.141.121.110.971.0940960.620.690.680.660.630.66501150.610.670.680.690.630.66601300.600.600.660.610.610.61701410.510.540.550.560.560.54801480.560.570.580.560.580.57901500.550.560.560.570.590.57Acceleration:To work out the acceleration use the formula:A=2S/T2Angle of SlopeAverage TimeAcceleration(m/s)(?)(sec)101.491.35201.132.34301.092.52400.666.89500.666.89600.618.06700.5410.28800.579.23900.579.23Analysis:My prediction was correct with a few off measurements. The steeper the slope the faster the acceleration. So the angle of the slope is proportional to the acceleration, but it is not directly proportional. The graph had the same basic shape as my prediction, but again there were a few off points. The graph has a curved, best-fit line, which proves the angle, and the acceleration are proportional.I had three main anomalous results. These angles were; 30?, 40? and 70?. I rectified these by repeating the angles.These were my new results:Angle of SlopeAcceleration(m/s)Time taken for marble to roll down slope (sec)(?)12345Average303.001.011.030.961.060.931.00405.060.750.790.770.740.790.77708.920.590.610.560.560.560.58I can now compare my set of results to the theoretical set of results, which I found using the formula: 9.81 x Sin angle = AccelerationThe calculated data is:10 o = 9.81 x Sin 10 = 1.70m/s 20 o = 9.81 x Sin 20 = 3.55m/s30 o = 9.81 x Sin 30 = 4.91m/s 40 o = 9.81 x Sin 40 = 6.31m/s50 o = 9.81 x Sin 50 = 7.51m/s 60 o = 9.81 x Sin 60 = 8.50m/s70 o = 9.81 x Sin 70 = 9.22m/s 80 o = 9.81 x Sin 80 = 9.66m/s90 o = 9.81 x Sin 90 = 9.81m/sThe new graph is as I predicted and shows my data follows the same basic curve as the theoretical results. Howev er all of my data is slower accelerating than the theoretical set. This is because the theoretical set ignores friction. As the marble is not perfectly spherical it often left contact with the table. This could have prevented the marble rolling in a straight line. This means my results have also experienced rotational effects as they rolled whereas the theoretical results ignored this. The frictional and rotational effects would have absorbed energy from the marble causing it to be slowed down. This means the marble in my experiment could not have accelerated as quickly as the calculated results show.From this I can conclude that the steeper the slope the faster the acceleration. Also that the formula to find the theoretical data works and the theoretical data shows the acceleration of an object rolling down a slope with none of its energy lost.Evaluation:The data I collected was quite good and follows the same basic pattern as the theoretical data. My original results were not very accurate, especially drop height 30?, 40? and 70?. However, these were redone and now are greatly improved. 30? is still slightly anomalous. Despite this I feel my results are sufficiently reliable to support the conclusion that the theoretical data shows the acceleration down a slope where there is no energy lost from the object.I feel the reason for the inaccuracy could be because the marble was not perfectly round meaning it did not roll in a completely straight line and that it changed the friction. It could also be that the slope was not set at exactly the right height or angle. Another more major reason could be that the time was not measured correctly or accurately. Measuring the time by hand and eye caused many problems. This meant the results could never be very accurate. The clock could not be started exactly as the ball was released. Also the eye could not see exactly when the marble reached the end and the clock could not be stopped quick enough.To improve the experimen t and the quality of the data you could get a computer to measure the time taken. There could be a clamp, meaning the ball is released exactly as the time is started. Also using lasers could mean the timer was stopped exactly as the marble reaches the end. This would make it a lot more accurate. The computer could also set the angle of the slope perfectly. Also you could increase the number of times taken at each angle to get a better average and cut down anomalous results even more.My results suggest that the theoretical data was correct, as mine where only slower due to friction, and they support the conclusion. Further investigation could be done to help support this. For example, using a perfectly round ball such as a metal ball bearing, and a smooth metal slope. This would remove some of the friction and get closer results to the theoretical set. Also for further work the marble could be rolled down different texture slopes to investigate the effects of varying amounts of frict ion. This would provide additional information, which would help identify exactly how much friction does affect the results, compared to the theoretical set.To extend the investigation you could do the same experiment but keep the slope at the same angle and change the mass of the ball. This would investigate how the mass effects the acceleration.

Chromosomes and Heredity essays

Chromosomes and Heredity essays The theory of the genetic basis of heredity was quite unheard of until the time of Gregor Mendel who proved with his experiments on pea plants that organisms inherited their traits from their parents. It was Mendel who first proposed that genes were the basic units of all living organisms. Children receive half their chromosomes from their father and half from their mother and hence they share the character traits of their parents. Each human being has two complete sets of 23 chromosomes, which are responsible for controlling all the bodily functions. Each parent in effect contributes one complete set of the 23 chromosomes to the child. Genetic information is stored inside the chromosomes in the forms of DNA strands and there are around 40,000 genes, which are responsible for instructing the ribosomes to synthesis specific proteins. (for specific functions). A particular gene is responsible for a particular character trait and parents pass on genes to their children, which is the fundamental principle behind inheritance. Furthermore every gene may have two or more different forms known as alleles. The genetic makeup of a person called the genotype is actually the combination of these inherited alleles. A person may either have homozygous alleles or heterozygous alleles. Alleles for a particular trait may either be dominant or recessive. The phenotype (physical appearance) of the person is determined by the expression of the dominant alleles. There are some cases where neither of the alleles are totally dominant in which case the phenotype is a combination of the phenotypes of both the alleles. So we see that the phenotype or the ultimate physical trait of a person is directly dependent upon the genetic information received from the parents. ...

Analysis of Badinerie by J.S Bach

The piece Badinage is in a light mood and structured in the Binary Form. It is cast in swift 2/4 meter beginning on the upbeat or musicians. This piece was originally written for a Chamber Orchestra and a solo flute. The piece starts In B minor and played In allegro tempo throughout. Badinage start with a mess forte dynamic marking meaning moderately loud with motive A in the pickup bar at the beginning and motive B starts on the second beat in bar two to bar 3. The Antecedent ranges from the beginning of the USIA to the first beat of bar four, which ends on a Perfect Authentic Cadence. The Consequent started on the second beat of bar for four to the first beat of bar ten, which ended on an Imperfect Cadence a one to a five suspended two chord In second inversion. They are long phrases throughout the duration of the piece. In the first five bars the bass line plays a Bass Continuo style in Baroque music, however in modern day it is called a Walking Bass style. In bars six to ten the melody line plays a similar rhythm that the bass was playing in the first five bars and the ass line plays a similar rhythm to what the melody line was playing.The second beat of bar 10 the dynamic marking changes to forte meaning loud which is the beginning of the phrase extension and sequential progression to bar 16. There Is a great build up in this phrase with a mess forte crescendo leading up to forte and the use of sixteen notes in the bass notes the section intense and bright. Bar sixteen the end of the first section is repeated and ends on an Imperfect five of five going to five cadence called atomization. The second section of the piece is a development of A, which Is the same melody played a fifth up.The Antecedent started from the pickup beat to the first beat of bar three on a five of three going to a three cadence. The piece then modulated to D major in the next bar then f# minor in bar 30 then back to b minor in bar thirty two. There is a phrase extension starting on the second beat of bar twenty to the first beat of bar twenty eight. The same idea comes back again of the melody line taking the rhythm of the bass line and the bass line taken the rhythm of the melody line in bars went eight to thirty two.There are pedal points in bars 33 to 35, interesting to note that there is use of octaves. In bars thirty six the first beat has a loud dynamic marking and the second beat has a soft dynamic marking which is quite interesting. There is a crescendo in the next bar leading up to forte towards the second to last bar. This section is then repeated and the section time around there is a rite. 2 Volta Inch means turn around then retard the second time. The piece ends on a Perfect Authentic Cadence.

Criminal Justice Essay Example | Topics and Well Written Essays - 1250 words

Criminal Justice - Essay Example Honestly, some of what I’ve seen have met my expectations while some have just not. What I’ve seen in the death row cell like it only accommodates one prison is expected for it is just like what I have viewed in movies. On the one hand, the sight of a secure cell and cell housing unit are also expected. However, when I have seen the open dorm housing unit, it is really something I have not imagined. Well, it is just that I have not visualized that prisoners can be housed as if they are just in a dormitory given that they are prisoned. In this kind of setting, the inmates are privileged to interact normally and closely to an open environment. Being an inmate housed in an open dormitory is really a benefit for being capable to interact to more people and also because they are situated in an open bay. And when you go outside the prison, its compound is really huge enough to see all its other buildings. On the overall, I can say that the Florida prison has an environment be tter than the other prisons and even far better than the slums in the third world countries. Through the virtual tour, I can say that the Florida prison is neat and orderly where prisoners can be treated fine enough as human beings. One among the prisons in Florida is the Main Detention Center. As Palm Beach County Sheriff Office states in its website, it happens to be the biggest building as it comprises a huge land area of 835,000 square feet and it is the most secured among the correctional facilities situated in a headquarter complex in West Palm Beach. This detention center is really huge enough to contain a total of 2,156 bed capacities including the beddings intended for services of infirmary and special management. In terms of population, Main Detention Center is housed with both males and females whose age can be adults or young adults. Majority of its prisoners are adult males who are not yet sentenced and are just about to go a court trial whereas the minority of the inma tes are adult females who are just their first time to be jailed and those who are in need of such particular medical or mental condition assistance. It is important to note that main detention center also accommodates the young female adult as well as the young adult males. Through the website of Palm Beach County Sheriff’s Office, it can be sensed that they have active participation on presenting services to their community through the Community Services Division. This division is further separated into four categories such as the Community Operations Bureau, Countywide Operations, Domestic Violence Unit and the Police Athletic League. Each group is specializing in a particular field in order to serve and protect the community. They all work together for the advantage of the community. In order to cut off the possibility of crime, the division of Community Operations Bureau of Palm Beach County Sheriff’s Office has ensured a number of law enforcement officers to be d elegated in each unit. Their preventive measures are dedicated to guarantee the value life among the citizens and as well as the advancement of its businesses. One among its services called Broken Star Fund is given to its dedicated workers together with their respective

Paper for class MIS 2100 Essay Example | Topics and Well Written Essays - 500 words

Paper for class MIS 2100 - Essay Example Having qualified personnel who can utilize information systems is critical to the success and growth of an organization. As a student, I have realized how important it is for me to learn about these systems in order to guarantee success in the future business career. Secondly, prior to taking this class, I simply viewed business systems as tools used in businesses for daily operations. However, after taking this class, I have learnt that information systems are a major source of competitive advantage, especially in the current business environment. I have learnt that information systems help businesses reduce the cost of doing business, and this ensures that products and services are offered at a lower cost. Through information systems, businesses can be innovative and come up with new products and services that satisfy the needs of the market better and efficiently. Overall, by taking this class, I have learnt not only how to use information systems to carry out daily business activ ities but also use them to set the business ahead of the rest in the market. Finally, the MIS 2100 class has enabled me understand the ethical and social issues raised by information systems. By using technology to carry out business activities, organizations expose themselves to a great risk which may affect their operations and their relationship with the society. For instance, information systems pose major challenges on people’s privacy since personal information is exchanged through different computer systems before arriving at the final destination. Through this process, private information may be leaked to unauthorized parties, and this may lead to serious ethical problems. Through this class, I have learnt how to use such systems responsibly in order to avoid some of these ethical and social challenges. By taking this class, I have leant that although technology is beneficial to the business, it can cause serious problems if not well used. This might comprise the