breemoore breemoore

11-06-2017
Mathematics

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For a sample with a mean of M = 50 and a standard deviation of s = 10, a z-score of z = +2.00 corresponds to X = 70. True or False?

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mreijepatmat mreijepatmat

11-06-2017

z score = (x-μ)/σ

2 = (x-50) / 10; solve for x

20= x-50 and x = 70 : TRUE

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