Mathematics, 12.09.2021 05:10 gpere6722
Cho vector ngẫu nhiên 2 chiều (X, Y) có hàm mật độ xác suất F(x, y)= {(3/2)x^2y nếu 0<=x<=1, 0<=y<=2. Và 0 nếu trái lại. Tìm hàm mật độ xác suất của biến ngẫu nhiên X và tính kỳ vọng E(X).
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Cho vector ngẫu nhiên 2 chiều (X, Y) có hàm mật độ xác suất F(x, y)= {(3/2)x^2y nếu 0<=x<=1, 0...
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