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What Z-Score Values Form the Boundaries for the Middle 60

Question 66

Multiple Choice

What z-score values form the boundaries for the middle 60% of a normal distribution?

A) z = +0.25 and z = -0.25
B) z = +0.39 and z = -0.39
C) z = +0.52 and z = -0.52
D) z = +0.84 and z = -0.84

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