Line of Best Fit

Front

What is the Line of Best Fit?

Back

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

Front

What does Causation imply?

Back

It implies that one variable directly affects another variable.

Front

What does Correlation imply?

Back

It indicates a relationship or association between two variables, but does not imply that one causes the other.

Front

What type of association does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What type of association does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the purpose of using a Line of Best Fit in data analysis?

Back

To make predictions about one variable based on the value of another variable.

Front

How do you find the Line of Best Fit using a calculator?

Back

Input the data points into the calculator and use the regression function to calculate the line.

Front

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

Back

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

Front

If the Line of Best Fit has a slope of 1.14, what does this indicate?

Back

For every unit increase in x, y increases by 1.14 units.

Front

What does it mean if the Line of Best Fit is horizontal?

Back

It indicates that there is no correlation between the variables.