Lesson 3

If the points on a scatter plot seem to follow a trend or pattern, it is important to establish what shape the trend is taking to decide what type of regression is appropriate.

Try This 2

For questions 1 and 2, provide the following information:

1. Predict what shape or trend the data is going to take before plotting it.
2. Plot the data and find the equation of the regression line or curve.
3. Sketch the line or curve of best fit on your scatter plot.
4. State what type of data is modelled.

1. (2, 50)
   (4, 45)
   (5, 32)
   (6, 28)
   (8, 22)
   (9, 19)
   (10, 15)
2. (2, 50)
   (3, 45)
   (5, 32)
   (6, 28)
   (8, 34)
   (9, 36)
   (10, 40)

Save your responses in your course folder.