1) Consider a binomial experiment with n = 20 trials and p = 0.40. a) Find the expected value and the standard deviation of the distribution. b) It is unusual for a binomial experiment to have values that are more than 2 standard deviations away from the mean. Would it be unusual to obtain fewer than 3 successes? Explain. alles quot. fin

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
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1) Consider a binomial experiment with n = 20 trials and p = 0.40.
a) Find the expected value and the standard deviation of the distribution.
b) It is unusual for a binomial experiment to have values that are more than 2 standard deviations
away from the mean. Would it be unusual to obtain fewer than 3 successes? Explain.
Transcribed Image Text:1) Consider a binomial experiment with n = 20 trials and p = 0.40. a) Find the expected value and the standard deviation of the distribution. b) It is unusual for a binomial experiment to have values that are more than 2 standard deviations away from the mean. Would it be unusual to obtain fewer than 3 successes? Explain.
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