cluster, outlier, scatter plot, trend line
When two sets of data have a positive or negative linear association, you can use a special line, called a trend line, to show the association more clearly.
A trend line is a line on a scatter plot, drawn near the points, that approximates the association between the data sets.
TEKS 8(1)(C), 8(5)(D), 8(11)(A)
Example Choosing Reasonable Trend Lines
Which of the lines shown are reasonable trend lines for the scatter plot? Explain your reasoning.