Question

Variable Tables. Find data on the Web for two variables that are clearly related in some way. Make a table (between 10 and 20 entries) of data values. Graph the data and describe
in words the function that relates the variables. Hint: Some possible variable pairs are (time, population of a city), (team batting average, average team salary) for major league baseball teams, and (blood alcohol content, reaction time) for a study of effects of alcohol.

Answer 1

Time	Us Population
2005	29.55
2006	29.84
2007	30.12
2008	30.41
2009	30.68
2010	30.93
2011	31.16
2012	31.4
2013	31.62
2014	31.86
2015	32.1
2016	32.34

This data file is created manually. Data file contain yearly USA pollution from year 2005 to 2016.

Scatter plot of time and USA population

From the above plot it can be seen clearly that the population is increasing function of time.

There is linear relationship between time and population.