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a box contains 3 blue chips and 9 reds. a person select two chips without replacement, find the probability of selecting 2 blue chips ?
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4 votes
a box contains 3 blue chips and 9 reds. a person select two chips without replacement, find the probability of selecting 2 blue chips ?

User Garreth Golding
by
8.1k points

1 Answer

4 votes

Answer:


(1)/(22)

Explanation:

12 total chips


(3)/(12) ×
(2)/(11)


(3*2)/(12*11)


(6)/(132)


(1)/(22)


User Sandeep Mukherjee
by
8.1k points
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