Managerial statistics

6. Assume a study on the number of sale calls and cars sold is: Number of calls 50 50 40 60 30 Number of cars sold 4 6 11 W 16 Required a. Compute the sample covariance b. Compute and interpret the sample correlation coefficient Chapter 4 1. Assume that a researcher interviewed 115 individuals who plan to order goods from a popular online retailer. The breakdown of those interviewed is shown below: Locations Number of people interviewed Brandon 30 Winnipeg 45 Portage 25 Winkler 15 Required a. What is the probability of selecting an individual from Brandon? b. What is the probability of selecting an individual from Winnipeg or Winkler? c. What is the probability of selecting an individual who is not from Brandon? 2. The management of an organization is tracking employee salaries. The result is shown below