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

Why is the line of best fit important?

Back

It helps to predict values and understand the relationship between variables.

Front

What does it mean if a line does not go through the middle of the data set?

Back

It may not accurately represent the trend of the data, indicating it is not a line of best fit.

Front

What is a positive correlation?

Back

A relationship where as one variable increases, the other variable also increases.

Front

What is a negative correlation?

Back

A relationship where as one variable increases, the other variable decreases.

Front

What does 'no correlation' mean?

Back

There is no apparent relationship between the two variables.

Front

How can you determine if a line is a line of best fit?

Back

By checking if it minimizes the distance from all data points to the line.

Front

What is a scatter plot?

Back

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

Front

What does the slope of the line of best fit represent?

Back

The rate of change between the two variables.

Front

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

Back

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