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neil hans Grade:
        

four person are choosen at random from a group of 3 mens, 2 womens, &4 childrens. find the probability of selecting exactly 2 children?

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear neil hans


number of ways in which 4 person can be choosen =9C4


number of ways in which exactlt two children are choosen =4C2 *5C2




Probablity =4C2 *5C2  /9C4


               =6*10/126


                =10/21





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Badiuddin

7 years ago
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