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in Mathematics by (68.5k points)

Three groups of children contain 3 girls and 1 boy; 2 girls and 2 boys; 1 girl and 3 boys. One child is selected at random from each group. The probability that the three selected consist of 1 girl and 2 boys is

a. 13/32

b. 9/32

c. 3/32

d. 1/32

1 Answer

+1 vote
by (45.7k points)
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Best answer

Correct option  a. 13/32 

Explanation:

Required Probability

= 3/4 x 2/4 x 3/4 + 1/4 x 2/4 x 3/4 + 1/4 x 2/4 x 1/4

= 26/64 = 13/32

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