HW #5 Z-scores
A normal distribution of scores has a standard deviation of σ =10; and a μ = 70.
Find the z-scores corresponding to each of the following values:
a) A score that is 20 points above the mean. (Hint: what score is 20 points above the mean of μ = 70?)
b) A score that is 10 points below the mean.
c) A score of x = 50.
d) A score of x = 35.
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