Question

Year Population (in millions)

2002 14.5
2003 15.1
2004 15.9
2005 17
2006 19.2
2007 21

Below is a table for the population of Florida from 2002 to 2007. What is the correlation coefficient of the best fit model?
A) 0.982
B) 0.972
C) 0.992
D) 0.947

Answer 1

B) 0.972

Explanation:

To be able to calculate the correlation coefficient of the model you just have to divide the number of one year by the number of the next year. TO make it clearer you can do it with the years 2002 and 2003:

Correlation Coefficient=
`(14.5)/(15.1)`=.960 and since the closest to that number is the .972 that´s the one that is the correct answer.