On a test that has a normal distribution, a score of 60 falls two standard deviations below the mean, and a score of 75 falls three standard deviations above the mean. Determine the mean of this test.

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i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,