Answer
$P(4)=0.00497$
Work Step by Step
$P(x)=\frac{(λt)^{x}}{x!}e^{-λt}$
For λ = 0.07, t = 10 and x = 4
$P(4)=\frac{(0.07\times10)^{4}}{4!}e^{-0.07\times10}=\frac{0.7^4}{24}e^{-0.7}=0.00497$
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 6 - Section 6.3 - Assess Your Understanding - Vocabulary and Skill Building - Page 351: 9a
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