I. Find the value of the correlation coefficient of the following table:

Subject Age (X) Glucose (Y)

1 45 99

2 34 65

3 54 79

4 36 75

5 48 87

Solution:

 X Y XY X2 Y2  

Computation for r:

r = ___________

Interpretation: _________________________________________________________________________________

II. From the above table, find the regression equation:

Computation for a and b:

a = ________________b = ________________

Regression Equation: ________________

1. If man's age is 52 years old, how high is his glucose? __________

Solution:

2. If his glucose is 70, how old is the man? _____________

Solution: