Which Statement Correctly Compares T-Distributions to the Normal Distribution

question 84

Multiple Choice

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

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

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Definitions:

Inflation

The rate at which the general level of prices for goods and services is rising, leading to a decrease in purchasing power.

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The marketplace in which employers find workers and workers find jobs, governed by the supply and demand for labor.

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