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We will answer the following 5 questions of the probability distribution of a multiple choice of 5 question with 3 choices.
a) How many of the 5 questions will be answered correctly?
b) If an entire class of 30 students took the test, what will be the average number of correct answers?
c) P(x=5 correct)=?
d) P(x=0 correct)=?
e) P(x is less than or equal to 2 correct)=?

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