Mathematics, 03.12.2021 04:00 summer132

4) It has been found that 62.1% of all unsolicited third class mail delivered to households goes unread. Over the course of a month, a household receives 100 pieces of unsolicited mail. a) What is the mean of the sample proportion of pieces of unread mail

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4) It has been found that 62.1% of all unsolicited third class mail delivered to households goes unr...