Suppose you had a normal distribution and a t distribution with 20 df drawn over the same baseline. If you pick a point well to the left of the mean, the proportion of the curve to the left of the point will be
A) greater for the t distribution
B) smaller for the t distribution
C) the same for both distributions.

Question

Quizplus · Accepted Answer

The t-distribution has heavier tails than the normal distribution, meaning it spreads out more and has more area in the tails. Therefore, for a point well to the left of the mean, the proportion of the curve to the left of that point will be greater for the t-distribution than for the normal distribution.

Suppose You Had a Normal Distribution and a T Distribution