SOLUTION: Suppose you are taking a 10--question quiz where each question has four possible answers. What's the probability that you will get at most 3 questions right?

Question 1167457: Suppose you are taking a 10--question quiz where each question has four possible answers. What's the probability that you will get at most 3 questions right?
Answer by VFBundy(438) (Show Source): You can put this solution on YOUR website!
Probability of getting exactly three questions right:
= 0.2503

Probability of getting exactly two questions right:
= 0.2816

Probability of getting exactly one question right:
= 0.1877

Probability of getting exactly zero questions right:
= 0.0563

Probability of getting "at most three" questions right:
0.2503 + 0.2816 + 0.1877 + 0.0563 = 0.7759
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