Answered: what is the probability that: the…

Math

Statistics

what is the probability that: the first question right is question #4? Get all questions right? get 1 question right

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Multiple choice exam has 7 questions with 4 choices each a,b,c,d. Randomly guess answers what is the probability that:

the first question right is question #4?

Get all questions right?

get 1 question right?

Expert Solution

Step 1

Let p be the probability of question to be right. Then p = 0.25 as only option is correct.

Let X denote the number of right questions out of 7 questions.

Step by step

Solved in 3 steps

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