A multiple-choice test consists of 10 questions, each with 4 possible answers butonly one which is correct. What is the probability that an unprepared will, by chancegetAll correct answersExactly 5 correct answers. At most 8 correct answers. At least 8 correct answersCompute the expected number of correct answers and the standard deviation.

Given that n=10 , p=1/4=0.25 , q=1-p=1-0.25=0.75 X=Number of correct answers…

Answered: A multiple-choice test consists of 10…

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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A multiple-choice test consists of 10 questions, each with 4 possible answers but only one which is correct. What is the probability that an unprepared will, by chance get All correct answers Exactly 5 correct answers At most 8 correct answers