Scatter Plots and Line of Best Fit

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 the line of best fit represent in a scatter plot?

Back

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

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the relationship between two variables, indicating how one variable changes in relation to another.

Front

What does a positive correlation indicate?

Back

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

Front

What does a negative correlation indicate?

Back

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

Front

What is no correlation?

Back

No correlation means there is no discernible relationship between the two variables; changes in one do not affect the other.

Front

What is a nonlinear association?

Back

A nonlinear association occurs when the relationship between two variables cannot be accurately represented by a straight line.

Front

How do you determine the line of best fit?

Back

The line of best fit is determined using statistical methods, such as least squares regression, to minimize the distance between the data points and the line.

Front

What is the purpose of analyzing scatter plots?

Back

Analyzing scatter plots helps identify trends, correlations, and potential relationships between variables.

Front

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

Back

A steep slope in a scatter plot indicates a strong relationship between the variables, whether positive or negative.