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Suppose a normal distribution has a mean of 20 and a standard deviation of 4.
What is the z-score value 0.52. Its standard deviations is less than the mean?
-0.13
0.13

NotSoSmart  Oct 24, 2018
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It wouldn't be negative; i did this before, it's 0.13. Hope I helped, please pay forward and answer mine as well if you can :)

Guest Oct 24, 2018

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