Bài 4.6. Cho hàm khối xác suất đồng thời của biến ngẫu nhiên hai chiều (X, Y)
có dạng
f(x, y)...
Mathematics, 03.07.2021 14:00 crickel40pa8sxe
Bài 4.6. Cho hàm khối xác suất đồng thời của biến ngẫu nhiên hai chiều (X, Y)
có dạng
f(x, y) =k/xy
x = 2,4,6; y = 1,2,3.
a) Tìm hằng số k.
b) Tìm hàm khối xác suất biên của X và Y.
c. Hỏi X và Y có độc lập không? Vì sao?
Answers: 3
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