Collect you own data set (at least twenty pairs of numbers) for two related variables.
Remember, the data must show a correlation. You may collect your data using an almanac,
newspaper, magazine, the internet, or by surveying people that you know.
Once the data has been collected, draw a table, graph the data and draw a line of best fit
that represents the data set.
Then, calculate the slope and write an equation for the line of best fit.
Finally, write a paragraph about what you found that describes the relationship between
the variables. Remember to include what you learned about the slope and y-intercept.
Below are a few suggestions, however, you may choose whichever related variables you
wish, provided that the two variables show a correlation.
Height vs. shoe size
Highway vs. city mileage