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Suppose a normal distribution has a mean of 18 and a standard deviation of 4.
A value of 24 is how many standard deviations away from the mean?
-3
-1.5
1.5

Answer :

LammettHashgo

24 = 18 + 6 = 18 + 1.5*4

so 24 is +1.5 standard deviations away from the mean.

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