Briefly describe the difference between a population and a sample ...

[Lisaclaire]

Briefly describe the difference between a population and a sample and give an example of each.

Question 2

A variable that takes on the values of 0 or 1 and is used to incorporate the effect of qualitative variables in a regression model is called a(n) _____.
 a. interaction
  b. constant variable
  c. dummy variable
  d. None of the answers is correct.

[connor417]

Answer to Question 1

A population is the group of all items of interest to a statistics practitioner, while a sample is a set of data drawn from the studied population.

Examples: All students at the West Virginia University is a population, while 150 students randomly selected from West Virginia University is a sample.

Answer to Question 2

c

[Lisaclaire]

Gracias!

[xthemafja]

Excellent