Mathematics > EXAM > Week 3 test 2 (All)
Week 3 test 2
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Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the variance. Round answer to 4 decimal places. Answer: 3.1875 Answer Key:3.1875 Feedback: 25*.85... *.15 Question 2 of 20 1.0/ 1.0 Points It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult workers is selected, what is the probability that less than 6 of them have a high school diploma? (That is, what is P(X<6) (keep 4 decimal places) Answer: 0.8555 [Show More]
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