A distribution of exam scores has a mean of M = 75.If your score is X...

^{A distribution of
exam scores has a mean of M = 75.}^{If your score is
X = 86, which standard deviation would give you a better
grade: s = 4 or s = 2?}

	a.	4
	b.	2
	c.	Both would give you the same grade
	d.	Not enough information is given

Expert Solution

Z = (X - µ) / s

Smaller the s, greater will be the z score and so a better grade.

Option-B) 2

orchestra answered 2 years ago

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