SCATTERPLOT, LINE OF BEST FIT

What is the line of best fit?

• f(x)= 5x+1.82

• cannot be determined

• f(x)= 1.82x + 5.02

• f(x)= 1.1x + 4.2

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Find the equation of the line of best fit for the given data

• y=163.41x+4.19

• y=-163.41x+4.19

• y=-4.19x+163.41

• y= 4.19x+(-163.41)
  

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57

• f(x) = 5.57x + 25.05

• f(x) = -5.57x + 25.05

• f(x) = 5.57x - 25.05

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20

• y = -x + 19

• y = x + 20

• y = 2/3x + 15 

If your dependent variable was 2, 4, 7, 9, 11, 15, and your independent variable was 1, 2, 3, 5, 7, 10, what is your correlation coefficient factor?

• 1

• .95

• .83

• .98