32: Class Exercise I – Graphing Distribution
CLASS EXERCISE 1
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- Graph the following distribution and determine which measure of central tendency and variability would be best to report:
1,2,2,1,2,4,4,5,2,5,2,1,4,5,2,5,4,1,5,5
- Assume Bob scored 90 on test 1 and 70 on test 2, Sally scored 80 on test 1 and 70 on test 2, Frank scored 60 on test 1 and 60 on test 2, Sue scored 40 on test 1 and 30 on test 2, and Sam scored 50 on test 1.
- A. First plot the scores on a scatter plot
- B. Then draw an estimated regression line and estimate Bob’s score on test 2.
- C. Finally, determine the regression formula and estimate Bob’s score using this formula.