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 - Page 761: 106

Answer

$=\frac{2169}{2379}\approx0.912$

Work Step by Step

We know that $probability=\frac{\text{number of favorable outcomes}}{\text{number of all outcomes}}$ The number of all outcomes is $2379$. (people at least 75) The number of good outcomes is $2169$ (males at least 75) Thus probability$=\frac{2169}{2379}\approx0.912$
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