## Elementary Statistics (12th Edition)

Published by Pearson

# Chapter 4 - Probability - 4-2 Basic Concepts of Probability - Basic Skills and Concepts: 15

#### Answer

$0.5$

#### Work Step by Step

know that $probability=\frac{number \ of \ good \ outcomes}{number\ of\ all\ outcomes}$. We need to express the probability in decimals. Therefore 50-50 is $\frac{50}{50+50}=\frac{50}{100}=0.5$

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