In an exam imposed by a corporation on a very large number of people, we consider that the score obtained is a random variable obeying a normal law. Note mean is 65 and variance is 152.The corporation decides that only 25% of participants will be accredited by this exam. What grade do you need to get to be accredited?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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In an exam imposed by a corporation on a very large number of people, we consider that the score obtained is
a random variable obeying a normal law. Note mean is 65 and variance is 152.The corporation
decides that only 25% of participants will be accredited by this exam. What grade do you need to get to be
accredited?

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