Thirty percent of the customers of a grocery store use express checkout. Consider five randomly selected customers, and

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Thirty Percent Of The Customers Of A Grocery Store Use Express Checkout Consider Five Randomly Selected Customers And 1 (18.97 KiB) Viewed 15 times

Thirty percent of the customers of a grocery store use express checkout. Consider five randomly selected customers, and let x denote the number among the five who use the express checkout. (Round your answer to three decimal places.) USE SALT (a) Calculate p(4), that is, P(x = 4). p(4) = (b) Calculate P(x ≤ 1). P(x ≤ 1) = (c) Calculate P(2 ≤x). (Hint: Make use of your answer from part (b).) P(2 ≤ x) = (d) Calculate P(x # 4). P(x + 4) =