Refer to the Following Table When Answering the Following Questions

question 7

Multiple Choice

Refer to the following table when answering the following questions.
Table 2.1: U.S. 2010 and 2015 Expenditures ($ billions)
-Consider Table 2.1. The federal government's share of total GDP in 2010 was about ________ percent, and in 2015 it was ________ percent.

• A) 12; 11
• B) 31; 29
• C) 33; 34
• D) 9; 7
• E) 21; 18

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Definitions:

V(X + Y)

The variance of the sum of two random variables, reflecting the spread or variability of their combined distribution.

Probability Distribution

A mathematical description of the likelihood of occurrence of different possible outcomes in an experiment.

Random Variable

A variable whose outcomes are determined by a random phenomenon or process.

Probability Distribution

A mathematical function that provides the probabilities of occurrence of different possible outcomes for an event.