A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, d, and e, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets more than 1 of them correct? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult a list of formulas.) 0 X

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, d, and e, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets more than 1 of them correct?

Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places.

(If necessary, consult a list of formulas.)

[There is an input box with options: X and a circular arrow icon, likely for clearing or submitting the input.]
Transcribed Image Text:A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, d, and e, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets more than 1 of them correct? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult a list of formulas.) [There is an input box with options: X and a circular arrow icon, likely for clearing or submitting the input.]
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Givensample size(n)=9p=15=0.2  ;   (i.e., 1 correct option from 5 choices a,b,c,d,e)Let "x" be the no.of questions are correct x~Binomial(n=9,p=0.2)P(X=x)=(nx)(p)x(1-p)n-x  ; x=0,1,..,n

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