Sociologists say that 95% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose that nine married women are having coffee together one morning. Find the following probabilities. (For each answer, enter a number. Round your answers to three decimal places.)
(a)
All of them dislike their mother-in-law.
(b)
None of them dislike their mother-in-law.
(c)
At least seven of them dislike their mother-in-law.
(d)
No more than six of them dislike their mother-in-law.
X=Women dislike there mother-in-law.
X~Binomial(n=9,p=0.95)
a)
All of them dislike their mother-in-law
Ans
(b)
None of them dislike their mother-in-law
Ans:
P(X=0)=0
(c)
At least seven of them dislike their mother-in-law.
=
x | P(X=x) |
7 | 0.06285 |
8 | 0.298539 |
9 | 0.630249 |
Total | 0.991639 |
(d)
No more than six of them dislike their mother-in-law.
ie
=1-0.9917
=0.008
=0.008
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