Question

AP High School entrance scores are Normally distributed with a mean of 75 and a standard deviation of 10.

RV X ~ n(mean = 75, stdev = 10)

4b. What is the probability of getting an 80 or more on this exam?

Please round probability to two decimal places, i.e., 0.xx.

Answer 1

Given:

= 75, = 10

Let X be the AP High school entrance scores

Find:

Therefore,

..............Using standard Normal table