Chapter 1: Q. 45 (page 53)
Insurance companies are interested in the mean health costs each year of their clients, so that they can determine the costs of health insurance.
Short Answer
a. The population is made up of insurance company clients.
b. A sample is a collection of clients.
c. The average expense of the clients' health.
d. The statistic is the sample's mean health costs.
e. The variable is the, X= the health costs of one client..
f. values for X , such as 34,9,82, and so on..