Which of the following is true about Student's t-models?
I. They are unimodal, symmetric, and bell shaped.
II. They have fatter tails than the Normal model.
III. As the degrees of freedom increase, the t-models look more and more like the Normal.
A) I only
B) II and III
C) I, II, and III
D) I and II
E) I and III

Question

Quizplus · Accepted Answer

I, II, and III are all true statements about Student's t-models. They are indeed unimodal, symmetric, and bell-shaped like the Normal distribution but have fatter tails, indicating a higher likelihood of extreme values. Additionally, as the degrees of freedom increase, the t-distribution converges to the Normal distribution.

Which of the Following Is True About Student's T-Models