寄托家园留学论坛

标题: 22号 1，5题怎么做呢？ [打印本页]

作者: caroline02 时间: 2009-10-1 22:10:17 标题: 22号 1，5题怎么做呢？

http://www.drrajusgre.com/forum/viewtopic.php?t=7137

1. Given a set of time intervals and number of patients.

& so on…… (请参看link里的题目)

5. Given the mean of a 'x' distribution whose percentile is between 60 and 75 as 56 and the mean of a 'y' distribution whose percentile is between 30 and 45 as 56.
Col A: x
Col B: y

谢谢

作者: yj7220 时间: 2009-10-2 18:47:56

额，这两道一直没看懂过，则么做啊？

欢迎光临寄托家园留学论坛 (https://bbs.gter.net/)