7.3. Scatter Plots http://www.ck12.org
Example B
Describe the correlation, if any, in the following scatter plot:
In the above scatter plot, there is a strong positive correlation.
Example C
The following table consists of the marks achieved by 9 students on chemistry and math tests:
TABLE7.6:
Student A B C D E F G H I
Chemistry
Marks49 46 35 58 51 56 54 46 53
Math
Marks29 23 10 41 38 36 31 24?
Plot the above marks on scatter plot, with the chemistry marks on thex-axis and the math marks on they-axis. Draw
a line of best fit, and use this line to estimate the mark that Student I would have made in math had he or she taken
the test.