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willbeatthegmat
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The arthematic mean & SD of a certain normal distribution r 13.5 & 1.5.What value is exactly 2 SD less than the mean?
a)10.5
b)11
c)11.5
d)12
e)12.5
OA: a
a)10.5
b)11
c)11.5
d)12
e)12.5
OA: a
