Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a positive slope indicate in a scatter plot?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

What does a negative slope indicate in a scatter plot?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

What does it mean if a scatter plot has no association?

Back

It means there is no discernible relationship between the two variables; the data points are scattered randomly.

Front

How can you identify a positive slope on a scatter plot?

Back

A positive slope can be identified by a line that rises from left to right.

Front

How can you identify a negative slope on a scatter plot?

Back

A negative slope can be identified by a line that falls from left to right.

Front

What is the slope of a line that is horizontal?

Back

The slope of a horizontal line is 0, indicating no change in the y-value as the x-value changes.

Front

What is the slope of a line that is vertical?

Back

The slope of a vertical line is undefined, as it does not pass the vertical line test.

Front

What does the steepness of a slope indicate?

Back

The steepness of a slope indicates the rate of change between the two variables; a steeper slope means a greater rate of change.

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

The formula for slope (m) is m = (y2 - y1) / (x2 - x1).