GWD2-3

由 **iamdior** » 2005-01-12 20:53

E
Q3:
Is the standard deviation of the salaries of Company Y’s employees greater than the standard deviation of the salaries of Company Z’s employees?
(1) The average (arithmetic mean) salary of Company Y’s employees is greater than the average salary of Company Z’s employees.
(2) The median salary of Company Y’s employees is greater than the median salary of Company Z’s employees.

可以請大大解釋一下標準差的作用媽？
都忘光光了真糟糕…..

由 **吳志道** » 2005-01-12 23:26

http://www.formosamba.com/phpBB3/viewtopic.php?t=958

有解釋一些觀念喔

由 **global1018** » 2005-02-07 21:24

我的GWD2-3是這題,我不知道答案在哪耶
所以PO上來請大家看看

Q3:
What is the remainder when the positive integer n is divided by 2?
(1)When n is divided by 5, the remainder is an odd integer.
(2) When n is divided by 10, the remainder is an odd integer.

這題我選B,不知道對不對~~~

由 **liwuu** » 2005-02-07 22:35

global1018 \$m[1]:我的GWD2-3是這題,我不知道答案在哪耶
所以PO上來請大家看看

Q3:
What is the remainder when the positive integer n is divided by 2?
(1)When n is divided by 5, the remainder is an odd integer.
(2) When n is divided by 10, the remainder is an odd integer.

這題我選B,不知道對不對~~~

答案是B沒錯...

由 **global1018** » 2005-02-07 22:48

謝謝你的解答

由 **best555tw** » 2005-04-30 21:28

求證一下
reminder 是不是不能為0?????

由 **ay0684** » 2005-06-07 23:57

請問一下remainder 為0不可以嗎?

由 **汪汪北鼻** » 2005-06-08 00:09

請問一下remainder 為0不可以嗎?

那不就是整除了嗎?

由 **Janet** » 2005-08-06 01:44

請問一下,(1)為何錯誤??

What is the remainder when the positive integer n is divided by 2?
(1)When n is divided by 5, the remainder is an odd integer.

如果(1),則remainder must be 1,3 ,而其除2的餘數一定是1阿,這樣(1)不是充分嗎??

由 **Janet** » 2005-08-06 01:55

剛剛突然想通了,我的思考出現盲點,因為我把餘數再除2,這樣是錯的!!

(1)正確的判斷應是

若n=6,則reminder是1,但除2reminder是0

若n=11,則reminder是1,但除2reminder是1

因此(1)不充分!!!

Sorry啦~誤導大家~

GWD2-3

GWD2-3

請問一下remainder 為0不可以嗎?

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