Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 11 - Probability and Statistics - 11-2 Probability - Practice and Problem-Solving Exercises - Page 685: 14

Answer

$0.5$ or $50\%$

Work Step by Step

Find the total number of marbles. $30+20+50=100$ The probability of choosing a blue marble is $\dfrac{\text{number of blue marbles}}{\text{total number of marbles}}$=$\dfrac{50}{100}$=$\dfrac{1}{2}$=$0.5=50\%$
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