statistics
posted by Anonymous .
For a population with µ = 70 and ó = 20, find the zscore that corresponds to each of the following Xvalues

Use zscore formula:
z = (x  mean)/sd
mean = 70
sd = 20
Substitute the values you have into the formula to find zscores.
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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?