The normal distribution with standard deviation

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According to a government study among adults in the 25- to 34-year age group, the mean amount spent per year on reading and entertainment is $2,045. Assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $515. (Round z-score computation to 2 decimal places and your final answer to 2 decimal places.) (a) What percent of the adults spend more than $2,650 per year on reading and entertainment? Percent % (b) What percent spend between $2,650 and $3,250 per year on reading and entertainment? Percent % (c) What percent spend less than $1,200 per year on reading and entertainment? Percent %

Reference no: EM131244626

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