Probability that shoppers will spend less than given value

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Reference no: EM13149377

Based on past records, the probability is 0.7 that a person shopping at a certain store will spend less than $20.

a. What is the probability that 19 from a sample of 22 shoppers will spend less than $20?

b. What is the probability that at least 12 but not more than 17 from a sample of 22 shoppers will spend less than $20?

Reference no: EM13149377

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