Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 11 - Counting Methods and Probability Theory - Chapter Summary, Review, and Test - Review Exercises: 64

Answer

5/6

Work Step by Step

The problem asks you to find the probability of not stopping on 4. You can use the complement rules of probability to figure out your answer. The probability that an event E will not occur is equal to 1 minus the probability that it will occur: P(not E)= 1-P(E) The probability of stopping on 4 is 1/6. P(not 4)= 1-P(is a 4) P(not 4)= 1- 1/6 Next, you have to create a common denominator to subtract the two fractions. P(not 4)= 6/6-1/6 P(not 4)=5/6 The probability of not stopping on 4 is 5/6.
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