The standard visualization is the popular, very important, and super-useful scatter plot. This is simply obtained by plotting pairs of points, each having the value of one variable determining the position on the x-axis, and the value of the other variable determining the position on the y-axis.
Scatter plots are good for showing the relationship between the variables. If there is a relationship, we can look for the following characteristics:
- Overall pattern: Generally, we will spot a pattern forming: it can be a linear pattern, a curvy pattern, an exponential pattern, or a more complicated one.
- Strength/Noise: This refers to how clearly we see the pattern, or how closely the points follow this pattern. We will also observe ...
