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 = ___________...

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:








X Y XY X2 Y2