The table shows the numbers of packages shipped daily by each of five companies during a 4-day period. The standard deviation of the numbers of packages shipped daily during the period was greatest for which of the five companies?_老师请问这题为什么选E选项，我上数学单科的时候老师讲了一道原题，是选E的，她说先算极差，留下B和E，又因为B选项的平均数=极差=20，所以这道题选E出国考试答疑器_GMAT

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题目：

The diagram shows a table, in which the four columns represents week days, i.e., Monday, Tuesday, Wednesday, and Thursday and the rows represents the name of the company, i.e., company A, company B, company C, company D, company E.

The table shows the numbers of packages shipped daily by each of five companies during a 4-day period. The standard deviation of the numbers of packages shipped daily during the period was greatest for which of the five companies?

选项:

A、A

B、B

C、C

D、D

E、E

提问：

老师请问这题为什么选E选项，我上数学单科的时候老师讲了一道原题，是选E的，她说先算极差，留下B和E，又因为B选项的平均数=极差=20，所以这道题选E

解答：

阅读1278

解答：徐小梅

提问：

解答：

阅读1279

解答：徐小梅老师

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