Correlation

Name:
Class:

 
 

1)  You are interested in studentsâ satisfaction with dorm life and the size of student rooms.

    What would it mean if you found a positive correlation between the variables?
    A negative correlation between the variables?  No correlation between the variables?

 
 
 
 
 
 
 
 
 

2)  Suppose you found the following results (5 = high, 1 = low):
 

    DORM        ROOM SIZE        SATISFACTION RATING

        1                    120                                     3

        2                    140                                     5
        3                    150                                     4
        4                    110                                     2
        5                    160                                     5
        6                    130                                     3
    Plot the results below:

 
 
 
 
 
 
 
 
 
 

3) What kind of correlation does the graph show?  Do these results prove that room size
    causes a change in student satisfaction?  Explain.