Question

identify the population and the sample. describe the sample data set. a survey of 140 law firms in a country found that the average hourly billing rate for partners was $620. identify the population. choose the correct answer below
all people in the country
all law firms in the country
all partners
the law firms that were surveyed
identify the sample. choose the correct answer below
the law firms that were surveyed
all partners
all people in the country
all law firms in the country

Explanation:

For identifying the population:

The population is the entire group we want to study. Here, the survey is about law firms' partners' billing rates, so the population is all law firms in the country (since we're studying law firms' data). The option "all people in the country" is too broad, "all partners" is about individuals, and "the law firms that were surveyed" is the sample. So the correct population is all law firms in the country.

A sample is a subset of the population. The survey was done on 140 law firms, so the sample is the law firms that were surveyed. "All partners" is not the sample (it's about individuals in firms), "all people in the country" is irrelevant, and "all law firms in the country" is the population.

Answer:

all law firms in the country

For identifying the sample: