Question #265322

The mean grade in a Physics examination was 75 and the standard deviation was 5. Determine the standard scores (z-value) corresponding to a grade of 85


1
Expert's answer
2021-11-15T18:45:29-0500
Z=X−μσ=85−755=2Z=\dfrac{X-\mu}{\sigma}=\dfrac{85-75}{5}=2

The standard scores (z-value) corresponding to a grade of 85 is Z=2.Z=2.

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