Question

Sociologists say that 90% 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. (a) All of them dislike their mother-in-law. At least seven of them dislike their mother-in-law. No more than six of them dislike their mother-in-law

Answer 1

Hello Sir/ Mam

Given that:

p = 0.9

n = 9

We know that:

Hence, using this,

x	P(x)
0	0.000000001
1	0.000000081
2	0.000002916
3	0.000061236
4	0.000826686
5	0.007440174
6	0.044641044
7	0.172186884
8	0.387420489
9	0.387420489

Hence,

(a)

:P(X = 9) = 0.3874

(b)

P(Atleast 7) = 0.9470

(c)

P(Atmost 6) = 0.0530

I hope this solves your doubt.

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