SOLUTION: Richard has just been given a 6-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended cla

Question 1145074: Richard has just been given a 6-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on all six questions, find the indicated probabilities.
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
Use the Binomial Probability formula
:
Probability(k successes in n trials) = nCk * p^(k) * (1-p)^(n-k)
:
Note that nCk = n!/(k! * (n-k)!)
:
For this problem n = 6 and p = 0.25
:
You did not post the rest of the problem, namely, the indicated probabilities!
:

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