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# 一題 GMAT-data sufficient -2

Q1: If each of the 8 employees working on a certain project received an award, was the amount of each award the same?

條件1:The standard deviation of the amount of the 8 award was 0.

條件2:The total amount of the 8 awards was $10,000.

答案是：條件一單獨成立。

為什麼條件1的標準差=0 能力呀???

請詳細解說謝謝!!

### 1 Answer

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- Go_BadgersLv 71 decade agoFavorite Answer
Q1: If each of the 8 employees working on a certain project received an award, was the amount of each award the same?

條件1:The standard deviation of the amount of the 8 award was 0.

條件2:The total amount of the 8 awards was $10,000.

條件1:The standard deviation of the amount of the 8 award was 0.

獎勵金額的標準差為0，表示8個人所得到的獎勵都相同。因此可以回答原問題，yes!

條件2:The total amount of the 8 awards was $10,000.

8人所得到的獎勵金總和為1萬元，有可能每個人得到＄1250，也有可能1個人得到＄3000，其他7個人得到＄1000……。只知道總和，各種分配的可能性有無限多種，因此無法回答原問題。

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