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: 19b

Answer

See the picture.

Work Step by Step

$E(X)=N\times P(x)$ N = 200 restaurants $E(0)=200\times0.002479=0.4958$ $E(1)=200\times0.0149=2.974$ $E(2)=200\times0.0446=8,924$ $E(3)=200\times0.08924=17.85$ $E(4)=200\times0.1339=26.78$ $E(5)=200\times0.1606=32.12$ $E(6)=200\times0.1606=32.12$ $E(7)=200\times0.1377=27.54$ $E(8)=200\times0.1033=20.66$ $E(9)=200\times0.06884=13.77$ $E(10)=200\times0.04130=8.26$ $E(11)=200\times0.02253=4.506$ $E(12)=200\times0.01126=2.252$ $E(13)=200\times0.005199=1.040$ $E(14)=200\times0.002228=0.4456$ $E(15)=200\times0.0008913=0.1783$ $E(16)=200\times0.0003342=0.06684$
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