题目:设随机变量X和Y的协方差矩阵为[[1,0.5],[0.5,2]],则D(X-Y)的值为:
2024-11-13
题目:设随机变量X和Y的协方差矩阵为[[1,0.5],[0.5,2]],则D(X-Y)的值为:
A. 1.5 B. 2 C. 2.5 D. 3
正确答案:C
试题解析:暂无
题目:设随机变量X和Y的协方差矩阵为[[1,0.5],[0.5,2]],则D(X-Y)的值为:
A. 1.5 B. 2 C. 2.5 D. 3
正确答案:C
试题解析:暂无