數學與統計 大學 2年以上以前 求解這題的計算過程 我分部積分積不出來 答案是0.6109 。 5.2. A group of construction workers take time X (in hours) to finish a task. The density function of time X is f(x) = cxe-√x 0 x ≥ 0 otherwise What is the probability that the workers will take more than 10 hours to complete the task? 已解決 回答數: 1
