Jojo has just been given a 10-question multiple-choice quiz in history class. Each problem has five possible answers and only one is correct. Since Jojo hasn't attended class recently, he doesn't know any of the answers. Assume Jojo guesses on all 10 questions. A) Find p, the success probability. Express your answers as a decimal.  B) Use your answer to part a to find the probability that Jojo gets at least one question correct. Probability that he gets no question correct? C) Find the mean and standard deviation out of ten. Round to two decimal places.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 6ECP: In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five...
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Jojo has just been given a 10-question multiple-choice quiz in history class. Each problem has five possible answers and only one is correct. Since Jojo hasn't attended class recently, he doesn't know any of the answers. Assume Jojo guesses on all 10 questions.

A) Find p, the success probability. Express your answers as a decimal. 

B) Use your answer to part a to find the probability that Jojo gets at least one question correct. Probability that he gets no question correct?

C) Find the mean and standard deviation out of ten. Round to two decimal places.

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