In a normal distribution quartile deviation is _______ (S.D.)?
Correct answer: D. .6745
- A. .2745
- B. .3789
- C. .79079
- D. .6745
Explanation
For a normal distribution, the first and third quartiles lie at z = −0.6745 and z = 0.6745. Thus the quartile deviation is 0.6745 standard deviations, making option d correct.
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