Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 9 - Counting and Probability - Exercise Set 9.1 - Page 523: 12

Answer

S= { HHH,HHi,Hii,HiH,iHH,iiH,iHi,iii} H = Healthy , i = ill a. { HHi , iHH,HiH } = $\frac{3}{8}$ *100% = 37.5% b. {iiH,Hii,iii,iHi} = $\frac{4}{8}$ *100% = 50% c. {HHH} = $\frac{1}{8}$ = 12.5%

Work Step by Step

S= { HHH,HHi,Hii,HiH,iHH,iiH,iHi,iii} H = Healthy , i = ill a. { HHi , iHH,HiH } = $\frac{3}{8}$ *100% = 37.5% b. {iiH,Hii,iii,iHi} = $\frac{4}{8}$ *100% = 50% c. {HHH} = $\frac{1}{8}$ = 12.5%
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