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Mathematics, 14.01.2021 01:40 electrofy456

An online retailer offers next-day shipping for an extra fee. The retailer says that 95% of customers who pay for next-day shipping actually receive the item the next day, and those who don't are issued a refund. Suppose we
take an SRS of 20 next day orders, and let X represent the number of these orders that arrive the next day.
Assume that the arrival statuses of orders are independent,
Which of the following would find P(X = 19)?
Choose 1
(20
19) (0.95)(0.05) 19
20
) (0.95)(0.05)
19
95
20
1) (0.95)(0.05)

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