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MATH 302 Midterm Exam Questions and Answers 2021

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MATH 302 Midterm Exam Questions and Answers 2021-A histogram that is positively skewed is also called A.symmetric B.skewed to the right C.balanced D.skewed to the left Answer Key: B ... Part 2 of 9 - 2.0/ 2.0 Points Question 2 of 25 1.0/ 1.0 Points In a genetics experiment 5 flowers out of 8 were bicolor, and the rest were solid color. If 3 of the flowers are selected at random without replacement, what is the probability that all 3 are bicolor? A.0.1786 B.0.2441 C.0.375 D.0.625 Answer Key: A Question 3 of 25 1.0/ 1.0 Points If a die is rolled one time, find the probability of getting a number greater than 2. A.2 B.-1 C.5/6 D.4/6 Answer Key: D Part 3 of 9 - 1.0/ 3.0 Points Question 4 of 25 0.0/ 1.0 Points The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months. x 0 1 2 3 4 5 P (X=x) 0.20 0.25 0.20 0.15 0.10 0.10 What is the expected value of X? A.1.20 B.2.0 C.3.65 D.6.25 Answer Key: B Question 5 of 25 0.0/ 1.0 Points Which term is NOT synonymous with the expected value of a discrete probability distribution? A.variance B.μ C.theoretical average D.mean Answer Key: A Feedback: All of the terms except for "variance" refer to the mean or expected value of a discrete probability distribution. Question 6 of 25 1.0/ 1.0 Points In one town 33% of the households have a vehicle with all-wheel drive. If 4 households are selected at random, what is the probability that all 4 have vehicles with all-wheel drive? A.0.0825 B.0.4662 C.0.33 D.0.0119 [Show More]

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