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What percent spend less than 1200 per year on reading and

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 $2,020. Assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $456. (Round z-score computation to 2 decimal places and your final answer to 2 decimal places. Omit the "%" sign in your response.)

(a) What percent of the adults spend more than $2,600 per year on reading and entertainment?

(b) What percent spend between $2,600 and $2,900 per year on reading and entertainment?

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