Grade Upto college level Algebra

4 persons are chosen at random from a group of 3 men, 2 women, 3 children. Find the probability that out of 4 choice, exactly 2 are children.

Manvendra Singh chahar

12 Years agoGrade Upto college level

4 Answers

SHAIK AASIF AHAMED

12 Years ago

Hello student,

Probability that out of 4 exactly 2 children is = (3c₂)(5c₂)/8c₄

=30/70=3/7

Thanks and Regards

Shaik Aasif

askIITians faculty

Saaraansh Mishra

8 Years ago

Sir your answer is wrong.It is 10/21.As it was given by a book of fiitjee . So your answer is wrong. Please provide us a valid solution.

Kritika Jain

8 Years ago

Can anyone please help me with this one?

Answer is 10/21 and the no. Of children in the group are 4 not 3

Ranganatha

8 Years ago

Selecting 2 children is 4C2=6Selecting 2 Non children (3M+2W)= 5C2=10Total ways of selecting 4 persons=9C4=126Probability is (6×10)/126=60/126=10/21

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View all Questions

4 persons are chosen at random from a group of 3 men, 2 women, 3 children. Find the probability that out of 4 choice, exactly 2 are children.

Manvendra Singh chahar

4 Answers

SHAIK AASIF AHAMED

Saaraansh Mishra

Kritika Jain

Ranganatha

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