Line of Best Fit Flashcard

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 correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the y-intercept in a linear equation?

Back

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

Front

How can you determine the slope of a line?

Back

By calculating the change in y divided by the change in x (rise over run).

Front

What does a scatter plot show?

Back

The relationship between two quantitative variables.

Front

What is the purpose of a trend line?

Back

To summarize the relationship between the data points and make predictions.

Front

How do you interpret the slope of a line of best fit?

Back

It indicates the rate of change between the two variables.

Front

What is an outlier in a scatter plot?

Back

A data point that is significantly different from the other points, which can affect the line of best fit.

Front

What does it mean if there is no correlation in a scatter plot?

Back

There is no discernible relationship between the two variables.