Scatterplots, and their directions

Front

What is correlation?

Back

Correlation refers to the statistical relationship between two variables. It can be positive, negative, or no correlation.

Front

What does a negative correlation indicate?

Back

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

Front

What does a positive correlation indicate?

Back

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

Front

What is no correlation?

Back

No correlation means there is no discernible relationship between the two variables.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Front

How do you identify a linear relationship in a scatter plot?

Back

A linear relationship is identified by points that roughly form a straight line.

Front

What is a quadratic relationship?

Back

A quadratic relationship is a type of relationship where the data points form a parabolic shape on a graph.

Front

What is an exponential relationship?

Back

An exponential relationship is one where the rate of change of a variable is proportional to its current value, often resulting in a curve that rises or falls rapidly.

Front

What does it mean if a scatter plot shows exponential decay?

Back

Exponential decay means that as one variable increases, the other variable decreases rapidly, approaching zero.

Front

What is a regression model?

Back

A regression model is a statistical method used to determine the relationship between variables, often used to predict outcomes.