Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables where each point represents an ordered pair of values.

Front

What does an outlier represent in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

What does a line of best fit indicate in a scatterplot?

Back

A line of best fit indicates the general direction or trend of the data points in a scatterplot.

Front

How can you describe a positive association in a scatterplot?

Back

A positive association occurs when an increase in one variable corresponds to an increase in another variable.

Front

What does a negative association in a scatterplot indicate?

Back

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

Front

What is the purpose of identifying the line of best fit?

Back

The line of best fit helps to summarize the relationship between the two variables and can be used for predictions.

Front

What does it mean if a scatterplot shows a linear relationship?

Back

A linear relationship means that the data points can be approximated by a straight line.

Front

What is the significance of the slope of the line of best fit?

Back

The slope indicates the rate of change between the two variables; a steeper slope indicates a stronger relationship.

Front

How can you determine if a scatterplot has a strong correlation?

Back

A strong correlation is indicated by data points that are closely clustered around the line of best fit.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.