• 2022-06-04
    设随机变量X的分布函数为[tex=12.5x4.357]cUZjNsD2xfP/RtWxdJU2nCZdq/t80gZl6PA6BCWZwJxuvs8zq+u8IrRkZwTxQYWrBpQmJUHUSNwfN9hcWtM4RPkgMk+MhvuuX78uxfihZg+VDOzyn+gOurolcMaNP/cjJDPXaA6InpjFqWX43S2AhQ==[/tex]求(1)常数A;(2)X取值落在(0.25,0.75)内的概率;(3)X的概率密度;(4)在四次独立实验中,有三次取值恰好落在(0.25,0.75)内的概率