Last month 15 homes were sold in Town X. the average sale price of the homes was $150,000 and the median sale price was $130,000. which of the following statements must be true?

1. at least one of the homes was sold for more than $165,000

2. at least one of the homes was sold for more than $130,000 and less than $150.000

3. at least one of the homes was sold for more than $130,000

答案如果我没记错的话，是只有1是对的。我选的3，请nn们指教

 哦。。。  看错了。。 应该是1 ，  statement 3的错误在于 说 at least one

of the homes was sold for more than 130,000, 但根据题干说median是130，000,所

以应该能确定的是至少有一套房以130，000卖出，而不是more than这个价钱。  1 正确

很明显啊， 平均值150，000，而且又有房价确定低于平均值， 所以肯定得有房价高于

这个平均值。

现在1是对的我明白了，是不是3也是对的呢？答案是有选项组合的那种，它选的是1，而没有选1&3