SRTBANDIT6045
13.07.2019 •
Mathematics
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 $2,035. assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $601. (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 $2,475 per year on reading and entertainment?
percent %
(b) what percent spend between $2,475 and $3,150 per year on reading and entertainment?
percent %
(c) what percent spend less than $1,025 per year on reading and entertainment?
percent
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Ответ:
The answer is B
Step-by-step explanation:
The range is the difference between the greatest and least, so the difference between the most time spent surfing the internet and the least time surfing the internet would be the answer.