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 a positive association in a graph indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative association in a graph indicate?

Back

As one variable increases, the other variable decreases.

Front

What does 'no association' mean in a graph?

Back

There is no discernible relationship between the two variables.

Front

What is the y-intercept in a linear equation?

Back

The point where the line crosses the y-axis, representing the value of y when x is 0.

Front

How do you determine the slope of a line?

Back

The slope is calculated as the change in y divided by the change in x (rise/run).

Front

What is correlation in statistics?

Back

A measure of the strength and direction of the relationship between two variables.

Front

What does a correlation coefficient of +1 indicate?

Back

A perfect positive correlation between two variables.

Front

What does a correlation coefficient of -1 indicate?

Back

A perfect negative correlation between two variables.

Front

What does a correlation coefficient of 0 indicate?

Back

No correlation between the two variables.