請教,這題目是啥意思阿...

在準備ＧＭＡＴ考試,看到這題目,根本沒看懂題目的意思,請高手幫忙看下:

A researcher computed the mean,the median,and the standard deviation for aset of performance scores. If 5 were to be added to each score,which of these　three statistics would change?

a. the mean only
b . the median only
c.the standard deviation only
d.the mean and the median
e. the mean and the standard deviation

所有跟帖： 

• 回複：請教,這題目是啥意思阿... -任我為- ♂ (186 bytes) () 12/06/2009 postreply 11:34:45

• 謝謝 -陶陶樂，樂陶陶- ♀ (72 bytes) () 12/06/2009 postreply 11:38:16

• 回複：謝謝 -任我為- ♂ (73 bytes) () 12/06/2009 postreply 11:47:22

• 問題是:mean,mediam,the standard deviation...我不懂,中文是什麽 -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 11:49:44

• d. -bearsback- ♂ (72 bytes) () 12/06/2009 postreply 11:41:57

• 正確,...能告訴我這題目的中文是什麽意思嗎, -陶陶樂，樂陶陶- ♀ (54 bytes) () 12/06/2009 postreply 11:47:01

• 回複：正確,...能告訴我這題目的中文是什麽意思嗎, -任我為- ♂ (30 bytes) () 12/06/2009 postreply 11:48:13

• 汗....什麽叫做方差和中位數 -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 11:50:46

• 沒事，你沒學過統計吧，找本統計書翻翻。那玩意兒很賤單。 -任我為- ♂ (18 bytes) () 12/06/2009 postreply 11:55:38

• 沒學過統計阿... -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 12:00:13

• 不用學統計。＂差＂就是difference。都加5還有啥difference？ -bearsback- ♂ (28 bytes) () 12/06/2009 postreply 12:06:05

• 噢,我看來主要是沒看懂題目中的名詞的意思 -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 12:46:32

• If they were in 中文, I might not be able to answer it -bearsback- ♂ (100 bytes) () 12/06/2009 postreply 11:57:58

• 這ＧＭＡＴ的數學到底相當於什麽水平阿,我大學就沒學數學了, -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 12:00:58

• 看你這幾道難題，大概是初中水平的難度。 -念親- ♀ (0 bytes) () 12/06/2009 postreply 14:39:22

• 看你這麽一講，那我哪些微積分題都白做了，這裏還是沒用上 -bearsback- ♂ (12 bytes) () 12/06/2009 postreply 15:11:40

• I believe your 微積分題's turn in coming soon. -念親- ♀ (0 bytes) () 12/06/2009 postreply 15:49:08

• 我並不覺得這數學題難,難的是我沒有看懂題目,用中文寫出來我還是會做的 -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 15:16:48

• 正如我兩個帖子的題目所說,對於這幾題我是沒有看懂題目,哈哈 -陶陶樂，樂陶陶- ♀ (205 bytes) () 12/06/2009 postreply 15:23:06

• 剛開始是這樣的，過不多久就沒這問題的。英語很重要：） -not.me- ♀ (0 bytes) () 12/06/2009 postreply 15:45:07

• 今天做了幾十道ＧＭＡＴ數學題下來,發現ＧＭＡＴ數學題並不難,難得是我 -陶陶樂，樂陶陶- ♀ (100 bytes) () 12/06/2009 postreply 15:50:03

• 不知者無過 -bearsback- ♂ (56 bytes) () 12/06/2009 postreply 15:47:26

• 哈,我昨天問他,他也把那些公式忘光啦,他原來還是數理化優等生呢 -陶陶樂，樂陶陶- ♀ (0 bytes) () 12/06/2009 postreply 15:51:40

• 數理化很重要，但poetry更重要 -bearsback- ♂ (2 bytes) () 12/06/2009 postreply 15:58:00

• 嘎嘎。。 -not.me- ♀ (0 bytes) () 12/06/2009 postreply 16:11:05