問題詳情

16. Let X be a random variable whose expectation equals to 3 and variance equals to 5. Considerthe probabilities: P (|X -3 |<10) and P (|X -3|≥8). Which of the following statement is notthe correct one?
(A)P(|X-3|<10)>0.75;
(B)P(|X-3|≥8)≥0.1
(C).P(|X-3|)≥8)<0.05;
(D)P(|X-3|≥8)≥0.06;
(E)P(|X-3|<10)>0.8.

參考答案

答案:[無官方正解]
難度:計算中-1
書單:沒有書單,新增