Line of Best Fit

Front

What is the line of best fit?

Back

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

Front

How do you determine the equation of the line of best fit?

Back

By using statistical methods such as least squares regression to minimize the distance between the data points and the line.

Front

What does a positive association in a scatter plot indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative association in a scatter plot indicate?

Back

As one variable increases, the other variable decreases.

Front

What does it mean if there is no association in a scatter plot?

Back

There is no discernible pattern or relationship between the two variables.

Front

What is the formula for a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the slope in the context of a line of best fit?

Back

The slope indicates the rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in the context of a line of best fit?

Back

The y-intercept is the value of the dependent variable when the independent variable is zero.

Front

How can you use a line of best fit to make predictions?

Back

By substituting a value of the independent variable into the equation of the line to find the corresponding dependent variable.

Front

What is a scatter plot?

Back

A graph that displays values for two variables for a set of data, using dots to represent the data points.