Correlation coefficient intuition

The  exercise appears under the Probability and statistics Math Mission. This exercise practices matching correlation coefficients to scatterplots to build a deeper intuition behind correlation coefficients.

Types of Problems
There is one type of problem in this exercise:


 * 1) Match the correlation coefficients with the scatterplots shown below.: This problem provides four scatterplots, A, B, C, and D. The student is asked to drag the cards above to match each scatterplot with the correct correlation coefficient. Correlation coefficient intuition.PNG

Strategies
Basic knowledge of the correlation coefficient encouraged to ensure success on this exercise.
 * 1) The correlation coefficient measures the direction and strength of a linear relationship.
 * 2) 1 is perfect positive correlation
 * 3) 0.5 is weak positive correlation.
 * 4) 0 is no correlation.
 * 5) −0.5 is weak negative correlation.
 * 6) −1 is perfect negative correlation.

Real-life Applications

 * 1) Some of the problems in this exercise can be viewed as a beginning-level understanding of slope, which is important all the way up to and including the calculus.