Maxine takes a 37-question multiple-choice exam, but she did not study and randomly guesses each answer. Each question has 5 possible choices for the answer. Let the random variable ✗ be the number of questions Maxine guesses correctly on the exam. How is X distributed? ✗~B 37 ☑, 0.2 Find the probability that the student gets exactly 6 questions right. Part 2 of 2 Find the probability that the student gets more than 13 but less than 26 questions right. Find the mean of the distribution. Find the standard deviation of the distribution.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Maxine takes a 37-question multiple-choice exam, but she
did not study and randomly guesses each answer. Each
question has 5 possible choices for the answer.
Let the random variable ✗ be the number of questions
Maxine guesses correctly on the exam. How is X
distributed?
✗~B
37 ☑, 0.2
Find the probability that the student gets exactly 6
questions right.
Part 2 of 2
Find the probability that the student gets more than 13 but
less than 26 questions right.
Find the mean of the distribution.
Find the standard deviation of the distribution.
Transcribed Image Text:Maxine takes a 37-question multiple-choice exam, but she did not study and randomly guesses each answer. Each question has 5 possible choices for the answer. Let the random variable ✗ be the number of questions Maxine guesses correctly on the exam. How is X distributed? ✗~B 37 ☑, 0.2 Find the probability that the student gets exactly 6 questions right. Part 2 of 2 Find the probability that the student gets more than 13 but less than 26 questions right. Find the mean of the distribution. Find the standard deviation of the distribution.
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