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Adult men average 69 in with SD 3 in. About 68% lie between which heights?
A63 and 75 in
B69 and 72 in
C60 and 78 in
D66 and 72 in
Answer & Solution
Correct answer: D. 66 and 72 in
One standard deviation either side of 69 gives 66 to 72 inches, covering about 68 percent.
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