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Mathematics, 03.01.2020 07:31 zhellyyyyy

2) in a set of data that show a normal distribution the mean is 7.8 and the standard deviation is 1.7. what is the proportion of numbers that are greater than 9? show all work. (hint: find the z-score and use the z-table.)
, i don't understand how to solve this question.

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2) in a set of data that show a normal distribution the mean is 7.8 and the standard deviation is 1....
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