<p>设二维随机变量（X，Y）的分布律为 <img max-width="300" src="https://learnfile.20230611.cn/learnAppQuestion/b5/7c/b57ca5e264163bf25054da6750ea1749.jpg" style="width: 100%;height: auto;"><img max-width="300" src="https://learnfile.20230611.cn/learnAppQuestion/d7/33 - 概率论与数理统计（经管类）(04183)