Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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If a set of data has a mean of 50 and a standard deviation of 4.5, what is the z-score
for a value of 40?
a) 2.22
b) -0.71
c) 0.71
d) -2.22
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Transcribed Image Text:If a set of data has a mean of 50 and a standard deviation of 4.5, what is the z-score for a value of 40? a) 2.22 b) -0.71 c) 0.71 d) -2.22
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