Use z-scores to determine which score has the highest relative position: a score of 42.5 on a test for which the mean is 47 and standard deviation of 9, or a score of 2.5 on a test for which the mean is 4.2 and the standard deviation is 1.2 , or a score of 427.2 on a test for which the mean is 444 and the standard deviation is 42.

Answer

a)

           z₁ = -0.5

b)

           z₂ = -1.42

c)

           z₃ = -0.4

The better relative position score will be more standard deviations above the mean.

Higher the Z-score better is the relative position

hence, z₂ has highest relative position

answer: 40392

step-by-step explanation:

10098 x 4 = 40392

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