Which Statement Correctly Compares T-Distributions to the Normal Distribution

question 753

Multiple Choice

Which statement correctly compares t-distributions to the Normal distribution?
I. t distributions are also mound shaped and symmetric.
II. t distributions are more spread out than the normal distribution.
III. As degrees of freedom increase, the variance of t distributions becomes larger.

• A) I and III only
• B) I and II only
• C) II only
• D) I, II, and III
• E) I only