Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 5 - Discrete Probability Distributions - 5-3 Binomial Probability Distributions - Basic Skills and Concepts - Page 219: 17



Work Step by Step

Using the Binomial Probability table the probability is: $P(X>2)=P(X=3)+P(X=4)+P(X=5)={5\choose 3} \cdot (0.2)^3\cdot (0.8)^2+{5\choose 4} \cdot (0.2)^4\cdot (0.8)^1+{5\choose 5} \cdot (0.2)^5\cdot (0.8)^0=0.0512+0.0064+0.00032=0.05792.$
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