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 line of best fit?

Back

By using methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

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

Back

It indicates that as one variable increases, the other variable also increases.

Front

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

Back

It indicates that as one variable increases, the other variable decreases.

Front

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

Back

It indicates no relationship between the variables; the line is horizontal.

Front

What is a scatter plot?

Back

A graph that displays values for typically two variables for a set of data.

Front

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

Back

It means there is no discernible pattern or relationship between the two variables.

Front

How can you visually assess the accuracy of a line of best fit?

Back

By checking how closely the data points cluster around the line.

Front

What is the purpose of the line of best fit in data analysis?

Back

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

Front

What is the formula for calculating the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1) for two points (x1, y1) and (x2, y2).