SOLUTION: Sociology:Mother-in-law Sociologist say that 85% of married women claim their husband's mother is the biggest bone of contention. In their marriages (sex and money are low rated ar

Question 971183: Sociology:Mother-in-law Sociologist say that 85% of married women claim their husband's mother is the biggest bone of contention. In their marriages (sex and money are low rated areas of contention). Suppose that 8 married women are having coffee together one morning. What is the probability that
A)All of them dislike their mother-in-law?
B)None of them dislike their mother-in-law?
C)At least five of them dislike their mother-in-law?

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Probability all dislike is 0.85^8= 0.27
Probability that none dislike is 0.15^8= 2.6 X 10^(-7)
At least 5 dislike
5 dislike 8C5 (0.85)^5(0.15)^3= 0.0839
6 dislike 8C6 (0.85^6 0.15)^2= 0.2376
7 dislike 8*(0.85^7) (0.15)=0.3848
8 dislike 0.85^8= 0.2725
Probability=0.9788
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