In a distribution of scores, X = 70 corresponds to z = +0.50, and X = 64 corresponds to z = -1.00. Find the mean and standard deviation for the distribution. (Answer both as a whole number.)
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z1 = (70-u)/s = 0.5
z2 = (64-u)/s=-1.0
subtract the two eqs
6 = 1.5 s
s = 4.0
u = 64-s = 60
Which answer is the mean, and the standard deviation? Thank you.
u is the mean s is the standard deviation
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