Correlation and Causation Basics

Front

What does a correlation coefficient (r) of -0.92 indicate?

Back

A strong and negative correlation.

Tags

CCSS.HSS.ID.B.5

Front

What does a correlation coefficient (r) of 0.89 indicate?

Back

A strong and positive correlation.

Tags

CCSS.HSS.ID.B.5

Front

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

Back

It indicates the change in the dependent variable for each unit change in the independent variable.

Tags

CCSS.8.EE.B.5

Front

In the equation y = 3.1x + 1.2, what does the slope (3.1) represent?

Back

For every 1 cup of coffee, daily homework scores increase by 3.1 points.

Tags

CCSS.HSF.LE.B.5

Front

What does a negative slope indicate about the relationship between two variables?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.8.EE.B.5

Front

If there is a strong positive correlation between two variables, what can be inferred?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What is the meaning of correlation?

Back

Correlation measures the strength and direction of a linear relationship between two variables.

Tags

CCSS.HSS.ID.C.9

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Tags

CCSS.RI.11-12.7

CCSS.RL.11-12.7

CCSS.RL.9-10.7

CCSS.RI.9-10.7

CCSS.RL.8.7

Front

What does it mean if the correlation coefficient (r) is close to 0?

Back

It indicates a weak or no linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is the range of possible values for a correlation coefficient (r)?

Back

The range is from -1 to +1.

Tags

CCSS.HSS.ID.B.5