Question

B. Write the equation of the best fit line. C. Write the Correlation Coefficient(r).D. What does the Correlation Coefficient(r) mean for this scenario? is there a relationship between the fat grams and the total calories in fast food?

Answer 1

B) For the given values the linear equation which best fit is

`y=11.73x+193.85`

where x correspond to the total fat and y to total calories. The slope m is equal to 11.73 and the y-intercept b is equal to 193.85

C) The correlation coefficient r is equal to 0.97.

D) The relationship is almost linear because r=0.97 which is almost 1. The value r=1 means that both variables fit in a line perfectly.