scatterplot

Front

What is a scatterplot?

Back

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

Front

What does a positive association in a scatterplot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is when the data points can be approximated by a straight line.

Front

What is a non-linear relationship in a scatterplot?

Back

A non-linear relationship is when the data points do not follow a straight line and may curve or cluster.

Front

How do you identify the slope of a line in a scatterplot?

Back

The slope of a line in a scatterplot indicates the rate of change between the two variables, calculated as the rise over run.

Front

What does it mean if there is no association in a scatterplot?

Back

No association means that there is no discernible pattern or relationship between the two variables.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the y-intercept in a scatterplot?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is zero.

Front

How can you determine the strength of a relationship in a scatterplot?

Back

The strength of a relationship can be determined by how closely the data points cluster around the line of best fit.