In class A 10 students 4 are men and 6 are women, class B has 16 men and an unknown number of women, if 2 students are randomly chosen...?
2018-10-03 6:39 am
In class A 10 students 4 are men and 6 are women, class B has 16 men and an unknown number of women. If 2 students are randomly chosen and if we know that there is a 0.44 probability where both of the chosen students are of the same gender, how do I calculate the number of females in class B?
回答 (1)
2018-10-03 8:01 am
I think this question is ambiguous .
1) Choose 1 student from class A and choose 1 student from class B
2) Choose 2 students from the union of class A and class B
Which is correct ?
1) Choose 1 student from class A and choose 1 student from class B
2) Choose 2 students from the union of class A and class B
Which is correct ?
收錄日期: 2021-04-24 01:10:00
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