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 351: 16a

Answer

$P(0)=0.267$ In about 267 of next thousand 100 million vehicle miles, there will be no fatal accidents.

Work Step by Step

$P(x)=\frac{(λt)^x}{x!}e^{-λt}$ λ = 1.32 -> (1.32 fatal accidents per 100 million miles) t = 1 -> (the next 100 million miles) $P(0)=\frac{(1.32\times1)^0}{0!}e^{-1.32\times1}=\frac{1}{1}e^{-1.32}=0.267$
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