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Question Help Assume the random variable X is normally distributed with mean 50 and standard deviation 7 Compute the probally Be sure PIX> 39) draw a normal curve with the area corresponding to the probably shaded Click the icon to view a table of areas under the normal curve Which of the following normal curves corresponds to PIX39) ОА, OB OC PX> 39- (Round to four orcimal places as needed

Answer 1

X  $\sim$ N( 50, 7² )

P( X > 39 ) =  $P(\frac{X-\mu}{\sigma}>\frac{39-50}{7})$
= P( Z > -1.5714 )
=  0.9420

The option A corresponds to the correct normal curve for P(X>39).

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