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3. Suppose there are 100 students in your accounting class, 10 of whom are left-handed. Two...
1. Consider the experiment of rolling a pair of dice values showing on the dice. experiment...
1. Consider the experiment of rolling a pair of dice values showing on the dice. experiment of rolling a pair of dice. Suppose we are interested in the sum of face a. How many simple events are possible? b. List the sample space. c. What is the probability of obtaining a 7? d. What is the probability of obtaining a value of 9 or more? Because each roll has six possible even values (2.4,6,8,10,12) and five possible odd values (3,5,7,9,11),...
Statistic
Suppose there are 100 students in your accounting class, 10 of whom are left-handed. Two students are selected at random.a) Draw a probability tree and insert the probabilities for each branch.b) What is the probability of the following events?c) Both are right-handed.d) Both are left-handed.e) One is right-handed and the other is left-handed.f) At least one is right-handed
2. Using the below table: A A2 0.3 В В 0.4 0.2 0.1 08 a. Compute...
2. Using the below table: A A2 0.3 В В 0.4 0.2 0.1 08 a. Compute P(A; or B1). b. Compute P(A) or B2) c. Calculate the marginal probabilities from the following table of joint probabilities. d. Detemine P(A | B1). e. Determine P(A2 B1). f. Did your answers to parts (a) and (b) sum to 1? Is this a coincidence? Explain. g. Calculate P(A; | B2) h. Calculate P(A2| B1). i. Are the events independent? Explain. bivong slde glT8...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a given student is a Poisson random variable; left-handers (L) report injuries at a handers (R) at a rate of 0.15 per year, 15% of the students are left-handed. rate of 0.25 per year, and right- (a) What is the probability that a randomly selected student is injured exactly twice this...
Suppose that about 9.2% of the population is left-handed. A 200-seat school auditorium has been built...
Suppose that about 9.2% of the population is left-handed. A 200-seat school auditorium has been built with 15 “lefty seats,” seats that have the built-in desk on the left rather than the right arm of the chair. In a class of 120 students, what is the probability that there will not be enough seats for the left-handed students? Explain how you arrived at your answer.
show your work 1, if right-handed 0, if left-handed. 10. Suppose the probability for a person...
show your work
1, if right-handed 0, if left-handed. 10. Suppose the probability for a person to be right-handed is p. Let X = (a) What distribution does X follow? (b) A scientist selected a random sample of 1000 people. Let Y be the number of people who are right-handed, what distribution does Y follow? (c) This scientist found out that among the 1000 people, 100 are right-handed. He then estimated p to be 0.1. What theorem justifies his conclusion....
3) We roll 2 fair dice. a) Find the probabilities of getting each possible sum (i.e....
3) We roll 2 fair dice. a) Find the probabilities of getting each possible sum (i.e. find Pr(2), Pr(3), . Pr(12) ) b) Find the probability of getting a sum of 3 or 4 (i.e.find Pr(3 or 4)) c) Find the probability we roll doubles (both dice show the same value). d) Find the probability that we roll a sum of 8 or doubles (both dice show the same value). e) Is it more likely that we get a sum...
A city ballot includes a local initiative that would legalize gambling. The issue is hotly contested,...
A city ballot includes a local initiative that would legalize gambling. The issue is hotly contested, and two groups decide to conduct polls to predict the outcome. The local newspaper finds that 53% of 1600 randomly selected voters plan to vote "yes," while a college Statistics class finds 54% of 350 randomly selected voters in support. Both groups will create 95% confidence intervals. Assume that all voters know how they intend to vote and that the initiative requires a majority...
Answer the questions on the right using the table of info on the left т т...
Answer the questions on the right using the table of info on the
left
т т т к т м м ТА Quantity Price AR MR TR 50 А Quantity 0 1 b) In your answer document, reproduce and fill in the revenue table shown here. Show two decimal places. 3 : fr Quantity втор Т Е Т Ето т н т TC F C VC MC AFC AVC ATC 94 940 NA NA NA NA 182 94 88 88...
Concept 8. When calculating a 95% confidence interval for a population mean, which is the most important situation where use of the t distribution would be better than use of the normal distribu...
Concept 8. When calculating a 95% confidence interval for a population mean, which is the most important situation where use of the t distribution would be better than use of the normal distribution? Write the letter for the best choice. A. When the sample size is small. B. when the population standard deviation is unknown. C. when the sample standard deviation is unknown. D. When the population standard deviation is known. E. When the sample size is large. For 9...
1. Consider the experiment of rolling a pair of dice values showing on the dice. experiment of rolling a pair of dice. Suppose we are interested in the sum of face a. How many simple events are possible? b. List the sample space. c. What is the probability of obtaining a 7? d. What is the probability of obtaining a value of 9 or more? Because each roll has six possible even values (2.4,6,8,10,12) and five possible odd values (3,5,7,9,11),...
2. Using the below table: A A2 0.3 В В 0.4 0.2 0.1 08 a. Compute P(A; or B1). b. Compute P(A) or B2) c. Calculate the marginal probabilities from the following table of joint probabilities. d. Detemine P(A | B1). e. Determine P(A2 B1). f. Did your answers to parts (a) and (b) sum to 1? Is this a coincidence? Explain. g. Calculate P(A; | B2) h. Calculate P(A2| B1). i. Are the events independent? Explain. bivong slde glT8...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a given student is a Poisson random variable; left-handers (L) report injuries at a handers (R) at a rate of 0.15 per year, 15% of the students are left-handed. rate of 0.25 per year, and right- (a) What is the probability that a randomly selected student is injured exactly twice this...
show your work
1, if right-handed 0, if left-handed. 10. Suppose the probability for a person to be right-handed is p. Let X = (a) What distribution does X follow? (b) A scientist selected a random sample of 1000 people. Let Y be the number of people who are right-handed, what distribution does Y follow? (c) This scientist found out that among the 1000 people, 100 are right-handed. He then estimated p to be 0.1. What theorem justifies his conclusion....
3) We roll 2 fair dice. a) Find the probabilities of getting each possible sum (i.e. find Pr(2), Pr(3), . Pr(12) ) b) Find the probability of getting a sum of 3 or 4 (i.e.find Pr(3 or 4)) c) Find the probability we roll doubles (both dice show the same value). d) Find the probability that we roll a sum of 8 or doubles (both dice show the same value). e) Is it more likely that we get a sum...
A city ballot includes a local initiative that would legalize gambling. The issue is hotly contested, and two groups decide to conduct polls to predict the outcome. The local newspaper finds that 53% of 1600 randomly selected voters plan to vote "yes," while a college Statistics class finds 54% of 350 randomly selected voters in support. Both groups will create 95% confidence intervals. Assume that all voters know how they intend to vote and that the initiative requires a majority...
Answer the questions on the right using the table of info on the
left
т т т к т м м ТА Quantity Price AR MR TR 50 А Quantity 0 1 b) In your answer document, reproduce and fill in the revenue table shown here. Show two decimal places. 3 : fr Quantity втор Т Е Т Ето т н т TC F C VC MC AFC AVC ATC 94 940 NA NA NA NA 182 94 88 88...
Concept 8. When calculating a 95% confidence interval for a population mean, which is the most important situation where use of the t distribution would be better than use of the normal distribution? Write the letter for the best choice. A. When the sample size is small. B. when the population standard deviation is unknown. C. when the sample standard deviation is unknown. D. When the population standard deviation is known. E. When the sample size is large. For 9...
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