Three shipping companies want to compare the mean numbers of deliveries their drivers complete in a day. The first two shipping companies provided their data from a sample of drivers in a table.

Company C showed its data in a dot plot.

Answer the questions to compare the mean number of deliveries for the three companies.

1. How many drivers did company C use in its sample?

Write your answer in the space below.

2. What is the MAD for company C's data? Show your work.

Write your answer in the space below.

3. Which company had the greatest mean number of deliveries?

Write your answer in the space below.

4. Compare the means for companies A and B. By how many times the MAD do their means differ? Show your work.

Write your answer in the space below.