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15) 16) 17) 12) 13) 14) c) c) d) d) b) c) a) d) b) d) c) d) Which of the following is correct about a probability distribution? Sum of all possible outcomes must equal 1 Outcomes must be mutually exclusive and collectively exhaustive Probability of each outcome must be between 0 and 1 inclusive All of the above a) b) () d) A market research team compiled the following probability distribution, where x represents the number of times per week students eat at the CSUSB Commons cafeteria. 3 The mean (expected value) of x is a) 1.0 b) 1.5 2.0 2.5 Consider once again the data from question #13 above. What is the standard deviation of the number of times per week students eat at the cafeteria? a) 0.80 0.89 1.00 2.00 X 0 It's question #13 again. What proportion of students eat at the cafeteria at least twice a week? 0.50 0.70 0.30 0.80 1 2 4.8 b) 3.2 1.92 1.39 P(x) 0.10 0.10 One last time...consider the data from question #13. Which of the following is true? a) This distribution is skewed to the right. b) This is a binomial distribution. 0.50 0.30 Ifx is a binomial random variable with 8 trials and a 60% chance of success, what is the standard deviation? This is a normal (bell shaped) distribution. This distribution is skewed to the left. Page 2 of 8 - Version A ion A 15) 16) 17) 12) 13) 14) c) c) d) d) b) c) a) d) b) d) c) d) Which of the following is correct about a probability distribution? Sum of all possible outcomes must equal 1 Outcomes must be mutually exclusive and collectively exhaustive Probability of each outcome must be between 0 and 1 inclusive All of the above a) b) () d) A market research team compiled the following probability distribution, where x represents the number of times per week students eat at the CSUSB Commons cafeteria. 3 The mean (expected value) of x is a) 1.0 b) 1.5 2.0 2.5 Consider once again the data from question #13 above. What is the standard deviation of the number of times per week students eat at the cafeteria? a) 0.80 0.89 1.00 2.00 X 0 It's question #13 again. What proportion of students eat at the cafeteria at least twice a week? 0.50 0.70 0.30 0.80 1 2 4.8 b) 3.2 1.92 1.39 P(x) 0.10 0.10 One last time...consider the data from question #13. Which of the following is true? a) This distribution is skewed to the right. b) This is a binomial distribution. 0.50 0.30 Ifx is a binomial random variable with 8 trials and a 60% chance of success, what is the standard deviation? This is a normal (bell shaped) distribution. This distribution is skewed to the left. Page 2 of 8 - Version A ion A

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The detailed answer for the above question is provided below 12Answer From the rules of probability ... View the full answer