Line of Best Fit

Front

What is the 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 points.

Front

What does a positive association in a scatter plot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatter plot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What is correlation?

Back

Correlation measures how strong or weak the relationship is between two quantitative variables.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine the slope of a line?

Back

The slope of a line is determined by the change in y divided by the change in x (rise over run).

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for two variables using dots to represent the data points.

Front

What does it mean if a scatter plot shows no association?

Back

If a scatter plot shows no association, it means there is no discernible relationship between the two variables.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to summarize the relationship between variables and make predictions.

Front

How can you visually identify a linear relationship in a scatter plot?

Back

A linear relationship can be visually identified if the data points roughly form a straight line.