Answer
$\approx0.986$
Work Step by Step
Using the formula for binomial experiments, the probability is: $P(k\leq2)=P(k=0)+P(k=1)+P(k=2)=_{5}C_{0}(0.12)^{0}(0.88)^{5-0}+_{5}C_{1}(0.12)^{1}(0.88)^{5-1}+_{5}C_{2}(0.12)^{2}(0.88)^{5-2}\approx0.986$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
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: 30
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