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The probability that in a family of 5 me...

The probability that in a family of 5 members,exactly two members have birthday on sunday is:-

A

`(12xx5^(3))/(7^(5))`

B

`(10xx6^(2))/(7^(5))`

C

`(2)/(5)`

D

`(10xx6^(3))/(7^(5))`

Text Solution

Verified by Experts

The correct Answer is:
D
(d) Probability of getting a Sunday in a week,
`p=(1)/(7).q=(6)/(7)`
`:.` Required probability `=""^(5)C_(2)((1)/(7))^(2)((6)/(7))^(3)=(10xx6^(3))/(7^(5))`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-BINOMIAL DISTRIBUTION-Exercise 2 (MISCELLANEOUS PROBLEM) (Mean and Variance
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