AP statistics chapter 7 Stats modeling the world third edition by David E. Bock

This chapter first introduces us to scatterplots, a graph that uses dots to display the
value of data in a more precise way. In order to describe scatter plots and its values we
need to know if there is a correlation between data:
● Direction: which tells us if the value of 2 variables go up or down together
● form: represents the values of numeric variables, showing the relationship
between the variables.
● Strength: coefficient is a statistical measure of the strength of the relationship
between the relative movements of two variables. The values range between -1.0
and 1.0.

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