Mathematics, 29.10.2019 05:31, amoauya

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 $2,060. assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $495. (round your z-score computation to 2 decimal places and final answers to 2 decimal places.)

what percent of the adults spend more than $2,575 per year on reading and entertainment?

what percent spend between $2,575 and $3,300 per year on reading and entertainment?

what percent spend less than $1,225 per year on reading and entertainment?

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According to a government study among adults in the 25- to 34-year age group, the mean amount spent...