SOLUTION: A multiple choice quiz consists of 7 questions, each with 3 possible answers. If a student guesses at the answer to each question, then the mean number of correct answers is

Algebra ->  Probability-and-statistics -> SOLUTION: A multiple choice quiz consists of 7 questions, each with 3 possible answers. If a student guesses at the answer to each question, then the mean number of correct answers is      Log On


   

Question 914159: A multiple choice quiz consists of 7 questions, each with 3 possible answers. If a student guesses at the answer to each question, then the mean number of correct answers is
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(correct) = 1/3
mean = (1/3)7 = 2
100%282%2F7%29= 29% on the quiz...