i saw two math from jj. But don't know the answer. is there somebody who can give me the explaination? Thanks.
143个工人,工资的中数35,000,问正确的说法有:
I. 至少有73个人工资不小于35,000
II. 至少有72个人工资小于35,000
III.至少有72个人工资大于35,000
A q for median, 97 students take apart in a test and the median score is 85 which of the following descriptions is correct?
1) At least 49 students’score are equal to or more than 85
2) At least 49 students’score are less than 85
3) At most 49 students’score are equal to or more than 85
I think those two question are similar.作者: Kilroy 时间: 2002-10-19 14:15