Testing for Relationships
More resources for testing for relationships:
More about correlation: https://explorable.com/statistical-correlation
Scatterplot generator: http://www.alcula.com/calculators/statistics/scatter-plot/
Another correlation example: http://www.socialresearchmethods.net/kb/statcorr.php
More on spurious correlations: http://www.tylervigen.com/spurious-correlations
Want to know if your correlation is significant? Use the sample size and r value in this online calculator to determine significance.
Updated January 27, 2018