Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 5 - Section 5.2 - Probability Distribution of a Discrete Random Variable - Exercises - Page 186: 5.8

Answer

a. b. X= The number of patients entering the emergency room i.P(X>=2) = 1-P(X<2) =1-0.2725-0.3543 =0.3732 ii.P(X=5) = 0.0084 iii.P(X<3) = P(X=0)+P(X=1)+P(X=2) = 0.2724+0.3543+0.2303 =0.857 iv.P(X<=1) = P(X=0)+P(X=1) =0.2725+0.3543=0.6268
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Work Step by Step

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