Scatter Plots Association

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 increases.

Front

What does a negative correlation indicate in a scatter plot?

Back

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

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 do not affect the other.

Front

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

Back

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

Front

What is the purpose of a line of best fit in a scatter plot?

Back

The line of best fit summarizes the trend of the data points and helps predict values.

Front

What does it mean if the points in a scatter plot are widely spread out?

Back

If the points are widely spread out, it indicates a weak correlation between the variables.

Front

How can you identify a strong positive correlation in a scatter plot?

Back

A strong positive correlation is identified when the points form a tight cluster that slopes upwards from left to right.

Front

How can you identify a strong negative correlation in a scatter plot?

Back

A strong negative correlation is identified when the points form a tight cluster that slopes downwards from left to right.

Front

What is an example of a positive correlation in real life?

Back

An example of a positive correlation is the relationship between study time and test scores; more study time typically leads to higher scores.