Republicans in the legislature have made life difficult for Governor Jerry Brown, because they have been able to stop or delay the passage of the annual state budget until their demands have been met.

Trade with the rest of the world accounts for about __________ percent of the U.S. gross domestic product (GDP)

a. 10 b. 15 c. 25 d. 30

A ____________ is a list, map, or other operational representation of the population from which the sample can be selected.

A. Utility frame B. Sampling frame C. Operational frame D. Signal frame