Answer
See below.
Work Step by Step
Let $P(H)=x$, then $P(T)=2x$. We also know that $P(T)+P(H)=1$, thus $2x+x=1\\3x=1\\x=\frac{1}{3}$.
Thus $P(T)=\frac{2}{3},P(H)=\frac{1}{3}$.
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 10 - Section 10.3 - Probability - 10.3 Assess Your Understanding - Page 705: 28
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