Following are the students scores in BBA entrance examination and their score in graduation

Question: Following are the students scores in BBA entrance examination and their score in graduation

Homework question

Solution:

The scatter diagram of the above data is shown below.

Solution homework

Since the points are dense i.e., close to each other, we may expect a high degree of correlation between the series of entrance score and graduation score. As the slope of points is upward from left to right, the correlation is positive.