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About 60% of all Americans have a sedentary lifestyle.
Chapter 5, Problem 11E(choose chapter or problem)
Problem 11E
About 60% of all Americans have a sedentary lifestyle. Select n = 96 Americans at random. (Assume independence.) What is the probability that between 50 and 60, inclusive, do not exercise regularly?
Questions & Answers
QUESTION:
Problem 11E
About 60% of all Americans have a sedentary lifestyle. Select n = 96 Americans at random. (Assume independence.) What is the probability that between 50 and 60, inclusive, do not exercise regularly?
ANSWER:
Step 1 of 4
Given:
The number of successes among a fixed number of trials follows a binomial distribution. The binomial distribution can be approximated by the normal distribution by the central limit theorem.
The mean of a binomial distribution is the product of the sample size and the probability .