Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 7 - Section 7.3 - Probability and Probability Models - Exercises - Page 483: 22

Answer

$P(even)=\frac{1}{2}$

Work Step by Step

$P(1)=P(2)=x$ $P(3)=P(4)=P(5)=P(6)=y$ Such that $x=3y$ $P(1)+P(2)+P(3)+P(4)+P(5)+P(6)=1$ $2x+5y=1$ $2(3y)+4y=1$ $10y=1$ $y=\frac{1}{10}$ $x=3y$ $x=\frac{3}{10}$ $P(1)=P(2)=\frac{3}{10}$ $P(3)=P(4)=P(5)=P(6)=\frac{1}{10}$ $P(even)=P(2)+P(4)+P(6)=\frac{3}{10}+\frac{1}{10}+\frac{1}{10}=\frac{5}{10}=\frac{1}{2}$
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