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Problem

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28 Oct 2021

Given information

At a college,  of courses have final exams and  of courses require research papers. Suppose that  of courses
have a research paper and a final exam. Let  be the event that a course has a final exam. Let  be the event that a course
requires a research paper.

Step-by-step explanation

Step 1.

Let   and   be two events, then we have

,

Let the events be

Event that a course has a final exam,

Event that a course has a research paper.

 

We need to calculate the probability that a course has neither final exam nor a research project

Thus is given as

,

Substituting the values, we get

 

Hence, the probability that a course has neither final exam nor a research project is .  

 

 

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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