A Statistics Professor Has Stated That 90% of His Students

A statistics professor has stated that 90% of his students pass the class. To check this claim, a random sample of 150 students who have taken the class indicated that 129 passed the class. If the professor's claim is correct, what is the probability that 129 or fewer will pass the class this semester?

A) .9484
B) .0516
C) .5516
D) .4484
E) .1624

Correct Answer:

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