# statistics

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For a population with µ = 70 and ó = 20, find the z-score that corresponds to each of the following X-values

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Use z-score formula:

z = (x - mean)/sd

mean = 70
sd = 20

Substitute the values you have into the formula to find z-scores.

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I do not understand this. Can you please explain it to me and how I am suppose to get the answer?

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