请求帮助！求助两道题！

hubuyang

 1.

Country	Consumption (in millions of kilograms)
J	1,080
K	600
L	360
M	330
N	310

 

The table above gives the coffee consumption in 1994 for five countries.  If the total coffee consumption of these countries was 40 percent of the world’s coffee consumption, what was the world’s coffee consumption, in millions of kilograms, in 1994?

 

A.       4,320

B.       4,470

C.       5,400

D.       6,480

E.        6,700

.

2.

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.

10号就考试了可是我脑子突然糊涂了。请大家帮忙看看。。。

concenciao

两个都是选E吧。

第一个 全部加起来在除以40%，得出6700.

第二个就是E

hubuyang

谢谢你。。。我好像知道了 = =

谢谢！