Answer
0.2568
Work Step by Step
Using the Binomial Probability formula the probability is: $P(X=3)={8\choose 3} \cdot (0.45)^3\cdot (0.55)^5=0.2568.$
Essentials of Statistics (5th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0-32192-459-2
ISBN 13:
978-0-32192-459-9
Chapter 5 - Discrete Probability Distributions - 5-3 Binomial Probability Distributions - Page 219: 21
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