Mathematics, 06.12.2020 08:40, Liantic

Assume the annual day care cost per child is normally distributed with a mean of $8,000 and a standard deviation of $1,500. In a random sample of 120 families that use day care, how many pay more than $7,250 annually for day care per child?

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Assume the annual day care cost per child is normally distributed with a mean of $8,000 and a standa...