Multiple Choice
The figure shows a normal N(400, 23) distribution. Find the x value for the shaded area. 
C.2 we get P(z > 1.75) = .0401, so x = µ + zσ = 400 + 1.75(23) = 440.3, or from Excel =NORM.INV(0.96,400,23) = 440.3.
Definitions:
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