Một nhóm có 10 người gồm 6nam và 4 nữ
phép thử : Chọn ngẫu nhiên ra 3 người
gọi X là s...
Physics, 07.09.2021 04:40 Fortnitenerd2238
Một nhóm có 10 người gồm 6nam và 4 nữ
phép thử : Chọn ngẫu nhiên ra 3 người
gọi X là số nữ ở trong nhóm
Answers: 2
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