Mathematics, 20.09.2019 12:20 graymonky12

Suppose a normal distribution has a mean of 12 and a standard deviation of 4
a value of 18 is how many standard deviations away from the mean?
a -2
b -1.5
c 1.5
d 2

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Suppose a normal distribution has a mean of 12 and a standard deviation of 4
a value of 18 is...