Consider a binomial experiment with n = 20 trials and p = 0.40. (a) Find the expected value (u) and the standard deviation (o) of the distribution. (b) Would it be unusual to obtain fewer than 3 successes? Explain. Confirm your answer by looking at the binomial probability distribution table.

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#4 Basic Computation: Expected Value and Standard Deviation
Consider a binomial experiment with n = 20 trials and p = 0.40.
(a) Find the expected value (u) and the standard deviation (o) of the distribution.
(b) Would it be unusual to obtain fewer than 3 successes? Explain. Confirm your answer by
looking at the binomial probability distribution table.
Transcribed Image Text:#4 Basic Computation: Expected Value and Standard Deviation Consider a binomial experiment with n = 20 trials and p = 0.40. (a) Find the expected value (u) and the standard deviation (o) of the distribution. (b) Would it be unusual to obtain fewer than 3 successes? Explain. Confirm your answer by looking at the binomial probability distribution table.
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