Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 6 - Section 6.3 - Assess Your Understanding - Applying the Concepts - Page 352: 20a

Answer

See the picture.

Work Step by Step

$P(x)=\frac{(λt)^x}{x!}e^{-λt}$ λ = 0.05 and t = 8 $P(0)=\frac{(0.05\times8)^0}{0!}e^{-0.05\times8}=0.6703$ $P(1)=\frac{(0.05\times8)^1}{1!}e^{-0.05\times8}=0.2681$ $P(2)=\frac{(0.05\times8)^2}{2!}e^{-0.05\times8}=0.05363$ $P(3)=\frac{(0.05\times8)^3}{3!}e^{-0.05\times8}=0.007150$
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