   Chapter 9.9, Problem 24ES ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193

#### Solutions

Chapter
Section ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
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# A software company uses two quality assurance (QA) checkers X and Y to check an application for bugs. X misses 12% of the bugs and Y misses 15%. Assume that the QA checkers work independently. What is the probability that a randomly chosen bug will be missed by both QA checkers? If the program contains 1,000 bugs, what number can be expected to be missed?

To determine

To find out the probability that typographical error will be missed by both proof readers.

Explanation

Given information:

Proofreader X misses 12% of the typographical errors and proofreader Y misses 15% of the typographical errors.

Calculation:

According to the given information the following things can be written

P(X)=12100P(Y)=15100

To determine

To find out what number can be expected to be missed if there are 1000 typographical errors.

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