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Mathematics, 16.12.2021 16:40 moran14
Một hộp bia có 24 lon, trong đó có 4lon có thưởng. Từ hộp bia này ta lấy lần lượt
ra 4lon. Gọi X là số lon bia có thưởng.
a) Lập bảng phân phối xác suất của X.
b) Tính xác suất nhận được ít nhất 2 lon có thưởng.
c) Trung bình nhận được bao nhiêu lon bia có thưởng?
d) Tính D(X), Mod(X).
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Answers: 3
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Một hộp bia có 24 lon, trong đó có 4lon có thưởng. Từ hộp bia này ta lấy lần lượt
ra 4lon. Gọi X l...
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