Scatterplots
Scatterplot
A graph that shows the relationship between a data set with two variables, graphed as ordered pairs on a coordinate plane
Cluster
A group of data points bunched up together
Ordered Pair
A pair of numbers that gives the coordinates of a point on a grid
Outlier
A piece of data that doesn't seem to fit with the rest of a data set.
Association (Correlation)
A relationship between the two variables of a bivariate data set
Line of best fit
A straight line that best represents the data on a scatter plot
Linear association
An association in which the data appear to lie close to a line
Negative Correlation
An association in which the y-value decreases as the x-value increases
Positive Correlation
An association in which the y-value increases as the x-value increases
Bivariate Data Set
An ordered list of ordered pairs of data points
Non-linear association
When data points do not lie close to a line
No association or No correlation
When there is no pattern in the observed data