Algebra 2 (1st Edition)

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

Chapter 11 Data Analysis and Statistics - 11.2 Apply Transformations to Data - 11.2 Exercises - Mixed Review - Page 755: 35


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Work Step by Step

The probability of tossing a coin 30 times and getting 11 heads can be found by applying: $P(X=11)=_nC_k p^k (1-p)^{n-k}\\=_{30} C_{11} 0.5^{11}(1-0.5)^{30-11}\\=\frac{30!}{(30-11)!.11!}\times0.5 ^{30}\\=0.0508$
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