since in 1. n is given, and in 2., the n can be derived from the median 13. so i think based on the data, the answer is D作者: sherrytang 时间: 2002-11-26 10:08
I agree with you. In this case,there are 5 numbers in the set, if the median is 13, then n=13.作者: hilisa 时间: 2002-11-26 11:30