SOLUTION: mean of 70 standard deviation of 12 find the percentage that will fall below 55

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Question 606542: mean of 70 standard deviation of 12 find the percentage that will fall below 55

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,
*Note:
z = (55-70)/12 = -1.25
P(z<-1.25) = .1057 or 10.57% will fall below 55

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