Identify the population and the sample. Describe the sample data set. A survey of 150 law firms in a country found that the average hourly billing rate for partners was $573. Identify the population. Choose the correct answer below. all partners the law firms that were surveyed all law firms in the country all people in the country Part 2 Identify the sample. Choose the correct answer below. all people in the country all law firms in the country all partners the law firms that were surveyed Part 3 Describe the sample data set. Choose the correct answer below. A. Charging an average of $573 per hour B. The average hourly billing rate for partners of 150 law firms was $573. C. Partners of 150 law firms were billed exactly $573 per hour. D. The 150 law firms