以下是引用shelleyzheng在2008-5-30 11:29:00的发言:对不起啊,是没抄全,条件2是BOTH MALE 小于1/10,还有另外一题: Tom, Jane, and Sue each purchased a new house. The average (arithmetic mean) price of the three houses was $120,000. What was the median price of the three houses? (1) The price of Tom’s house was $110,000. (2) The price of Jane’s house was $120,000. 我选B,答案是E, 我直晕啊,是答案错了,还是我错了啊,请指教。谢谢 这个median price应该就是Jane的$120,000吧。 大家能不能把答案说出来啊,别B啊E啊,不明白的 |