Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 10 Counting Methods and Probability - 10.6 Construct and Interpret Binomial Distributions - 10.6 Exercises - Skill Practice - Page 728: 10

Answer

5/262144

Work Step by Step

The general formula for the distribution of the heads and tails should be found. The chance of having any specific side of the coin is $1/2$, and the way to choose n heads is $_{20}C_n$. $$_{20}C_1.*(1/2)^{20}=\boxed{5/262144}$$
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