For the data in Exercises 19–24:

  1. Find the sample size .
  2. Calculate the sample mean .

Question 3.19

19. A sample of the state export data from Exercise 13 is provided in the table.

State Exports
Connecticut 1.4
Massachusetts 2.4
Rhode Island 0.2

3.1.19

(a) 3 (b) $1.33 billion