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 association in a scatter plot 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 scatter plot indicate?

Back

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

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, showing the general direction of the data points.

Front

How can you determine the strength of a relationship in a scatter plot?

Back

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

Front

What does 'no correlation' mean in a scatter plot?

Back

'No correlation' means that there is no apparent relationship between the two variables; the data points do not show any consistent pattern.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables, making it easier to identify trends, correlations, and outliers.

Front

What does it mean if a scatter plot has a downward slope?

Back

A downward slope in a scatter plot indicates a negative correlation, meaning that as one variable increases, the other variable decreases.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that lies far away from the other points in the scatter plot, which may indicate an unusual observation.

Front

How do you interpret the slope of the line of best fit?

Back

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