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標題:
發問:
For a group of 4 boys and 4 girls. Find: (1) No. of ways of selecting 2 boys and 2 girls. (2) No. of ways of arranging 2 boys and 2 girls. (3) Probability of getting 2 boys and 2 girls from the group.
最佳解答:
(1) (4C2)(4C2) = 36 (2) (36)(4!) = 864 (3) 36/8C4 = 36/70 = 3/14
其他解答:
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Probability發問:
For a group of 4 boys and 4 girls. Find: (1) No. of ways of selecting 2 boys and 2 girls. (2) No. of ways of arranging 2 boys and 2 girls. (3) Probability of getting 2 boys and 2 girls from the group.
最佳解答:
(1) (4C2)(4C2) = 36 (2) (36)(4!) = 864 (3) 36/8C4 = 36/70 = 3/14
其他解答:
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