Lines of Best Fit

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the trend of the data points.

Tags

CCSS.8.EE.B.5

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

Front

What is no correlation?

Back

There is no relationship between the two variables; changes in one do not affect the other.

Tags

CCSS.HSF-LE.A.1B

Front

How do you determine the line of best fit from a scatter plot?

Back

By visually assessing the data points and drawing a line that minimizes the distance to all points.

Tags

CCSS.8.EE.B.5

Front

What is the formula for a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

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

Back

The rate of change of the dependent variable with respect to the independent variable.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept in a linear equation?

Back

The value of y when x is 0; it is where the line crosses the y-axis.

Front

If the correlation coefficient is close to 1, what does it indicate?

Back

A strong positive correlation between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

If the correlation coefficient is close to -1, what does it indicate?

Back

A strong negative correlation between the two variables.

Tags

CCSS.HSS.ID.B.5