Ona multiple choice test with 5 questions,each question has three possible answers,one of which is correct. For students whoguess at all answers, find the standarddeviation for the random variable X, thenumber of correct answers.Oa. 1.054O b. 1.1111O c. 1.65O d.0.33

Answer : - Given, n = 5 questions, each question has three possible answers,…

Answered: Ona multiple choice test with 5…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Ona multiple choice test with 5 questions, each question has three possible answers, one of which is correct. For students who guess at all answers, find the standard deviation for the random variable X, the number of correct answers. Oa. 1.054 O b. 1.1111 O c. 1.65 d. 0.33