Thinking Mathematically (6th Edition)

Published by Pearson

Chapter 11 - Counting Methods and Probability Theory - 11.6 Events Involving Not and Or; Odds - Exercise Set 11.6 - Page 736: 92

Answer

$\frac{1}{29}$

Work Step by Step

If the odds against event E are a to b, then the probability of the event is given by P(E) =$\frac{b}{a+b}$ The odds against deep-vein thrombosis are 28 to 1. P(E) = $\frac{1}{28+ 1}$ = $\frac{1}{29}$

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