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 correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

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 correlation?

Back

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

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify trends, patterns, or outliers in data.

Front

What does it mean if the line of best fit slopes upwards?

Back

If the line of best fit slopes upwards, it indicates a positive relationship between the two variables.

Front

What does it mean if the line of best fit slopes downwards?

Back

If the line of best fit slopes downwards, it indicates a negative relationship between the two variables.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that significantly differs from other observations in the scatter plot, potentially indicating an anomaly.