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 (PS)List of G and F contains 20 numbers, the average Of G is  greater then the greatest number in F, 问下面那几个正确.

(1)     the average of G is greater than the average of F

(2)     the median of G is greater than the median of F

(3)     the range of G is greater than the range of F

提供機經的人是選擇1對

可是我覺得1.2好像都對耶~

2到底對不對呀?

Judy: 我覺得(2)不行耶

         假設兩個集合裡面都包含6個數字

         G:{1,2,3,4,20,30}   avg.=10 

         F: {1,2,3,7,8,9}     Max=9   avg=5

         median:  G=3.5   F=5

        這樣就推翻囉!

    (DS)X小于1

(1)X < X 开三次方

(2)X的三次方< X

這題B可以嗎?

Judy: (2) x³<x  應該只有兩種可能: 1. x<0

                                                         2. 0<x<1

so, 我覺得答案應該是D吧