問題詳情

4. According to the Chebyshev rule, at least 75% of all observations in any data set are contained within adistance of how many standard deviations around the mean?
(A) 1
(B) 2
(C) 3
(D) 4

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