On a test that has a normal distribution, a score of 37 falls three standard deviations above the mean, and a score of 13 falls three
standard deviations below the mean. Determine the mean of this test.

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attempt 1 out of 2

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75

answer: i think its red because you have to see what it equals to

hope that