一组数据73,79,72,79,68,80,81,67,66,87,65,83,89,65,64,60,52,48,45,44的四分差为()


一组数据73,79,72,79,68,80,81,67,66,87,65,83,89,65,64,60,52,48,45,44的四分差为()

A.9.15

B.9.75

C.8.125

D.8.75

正确答案:C


Tag:教育统计学 数据 时间:2024-01-24 10:35:35