Mathematics, 16.03.2020 18:49 mommytobe2019
The number of days (X) after mailout it takes a utility company to receive payment for a customer’s bill is a normal random variable with a mean of 31 days and a standard deviation of 6 days. The latest 2.5% of bills will be received more than how many days after mailout? a) 13 b) 19 c) 25 d) 31 e) 37 f) 43 g) 49
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