Our teacher already knows there is a positive relationship between how much time was spent on an essay and the grade the essay gets, but we’re going to need some data to demonstrate this properly.

Regression analysis (or, more specifically, linear regression analysis) finds a "line of best fit" between a response variable and one or more explanatory variables. This applet allows users to look ...

A statistical technique for fitting a curve to a set of data points. One of the variables is transformed by taking its logarithm, and then a straight line is fitted to the transformed set of data ...