Line of best Fit

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot. It shows the general direction of the data points.

Front

How do you determine if a line is an accurate line of best fit?

Back

A line is an accurate line of best fit if it minimizes the distance between itself and all the data points, ideally passing through the center of the data distribution.

Front

What does a positive correlation in a scatter plot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation in a scatter plot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What does 'no correlation' mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not predict changes in the other.

Front

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

Back

Front

What is the slope of a line of best fit?

Back

The slope of a line of best fit indicates the rate of change of the dependent variable with respect to the independent variable.

Front

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

Back

You can visually assess the accuracy by observing how closely the data points cluster around the line. A good fit will have points close to the line.

Front

What is the y-intercept in the equation of a line?

Back

Front

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

Back

The purpose is to summarize the relationship between variables, make predictions, and identify trends in the data.