NO.PZ2015120601000012
问题如下：
An analyst stated that as degrees of freedom increase, a t-distribution will become more peaked and the tails of the t-distribution will become less fat. Is the analyst’s statement correct with respect to the t-distribution:
选项：
becoming more peaked?
tails becoming less fat?
No
Yes
Yes
No
Yes
Yes
解释：
C is correct.
As degrees of freedom increase, the t-distribution will more closely resemble a normal distribution, becoming more peaked and having less fat tails.
随着自由度的增加，t 分布将更接近于正态分布，变得更加尖峰并且具有更少的肥尾。
如题。。。。。。。。。。。
