10. A multiple-choice test has 30 questions and each one has five possible answers, of which one...
.0604
.1325
.2552
.8000
Homework Answers
n=30
We are having 5 choices. This means that p=1/5.
Using Binomial Distribution
P[X=4]=30C4 *(0.2)^4*(1-0.2)^(30-4)=0.132522
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