Answer
$0.246$
Work Step by Step
$p=0.14, q=0.86, n=7$ use binomial formula,
$P(X=2)+P(X=3)=0.246$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 5 - Discrete Probability Distributions - 5-3 The Binomial Distribution - Exercises 5-3 - Page 285: 31
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