Causation v Correlation

Correlation or Causation?

When it rains several inches, the water level of a lake increases

• Correlation

• Causation

This implies that one variable has a direct affect on the other variable.

• Correlation

• Causation

Remember!

• Got it!

• Gimme those negative points!

Correlation or Causation?

The speed you drive and the amount of fuel you use

• Correlation

• Causation

​ (a)   is when one event causes a second event.

• Causation

• confounding variable

• correlation coefficient

• coefficient of determination

• necessary condition

• sufficient condition

• common response

What is an important thing to remember about correlation and causation?

• does

• will sometimes

• will always

• should

• could

• does not

An individual's decision to work in construction and his diagnosis of skin cancer.

• Correlation

• Causation

Derrick thinks playing video games results in him doing more work. His roommate thinks otherwise Calculate the correlation coefficient, r, of the data set. Round to THREE decimal places.

Mathematical Equivalence

ON

The scatter plot shows the number coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?

• A) As the number of coffee shops increase, violent crimes appears to increase.

• B) The line of best fit (regression line) shows a positive correlation

• C) The data has a positive correlation coefficient

• D) An increase in coffee shops causes an increase in violent crimes

An individual's decision to work in construction and his diagnosis of skin cancer.

• Correlation

• Causation