[計量] 請教兩題數學
1.A committee of 5 is to be selected from a group of 15 girls
A: Number of selection if a girl is always included
B: Number of selection if a girl is always excluded
答案好像是B
2.Probability that it will rain on monday and not on tuesday is 0.4
Probability that it will rain on tuesday and not on monday is 0.2.
A: Probability that it will not rain on both the days
B: 0.35
沒有答案耶
謝謝!!
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10/21 11:34, , 1F
10/21 11:34, 1F
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