☆─────────────────────────────────────☆
sun524 (jojo) 于 (Sun Jan 27 21:36:06 2008) 提到:
不知道以前有没有类似的问题回答过。 刚在版内搜了一下， 没有找到。 各位大侠帮
忙说说吧。
1.How would you generate 1000 observations from a normal distribution with a
mean of 50 and standard deviation of 20.
2.If you have a data set that contains 100 observations,how do you randomly
select 5?
☆─────────────────────────────────────☆
waterpuma (waterpuma) 于 (Sun Jan 27 21:43:29 2008) 提到:
(1) Data name;
do i =1 to 1000;
x = Rand('NO
