Scatter Plots and Line of Best Fit Flashcard

Front

What is a scatter plot?

Back

A scatter plot is a type of plot or graph that displays values for two variables as points on a Cartesian plane.

Front

What does a steep line of best fit indicate?

Back

Strong positive correlation.

Front

What is the equation of a line of best fit?

Back

y = mx + b.

Front

What does a correlation coefficient of 1 indicate?

Back

Perfect positive linear relationship.

Front

What does the slope of the line of best fit represent?

Back

The rate of change between the two variables being analyzed.

Front

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

Back

To summarize the relationship between the two variables and make predictions.

Front

What does a negative slope in a line of best fit indicate?

Back

A negative correlation between the two variables.

Front

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

Back

By observing how closely the points cluster around the line of best fit.

Front

What is the range of possible values for a correlation coefficient?

Back

The range is from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

No linear relationship between the two variables.