Answer
See the picture.
Work Step by Step
Total: 60 couples.
The relative frequency for "0" is $\frac{7}{60}\approx0.1167$
The relative frequency for "1" is $\frac{7}{60}\approx0.1167$
The relative frequency for "2" is $\frac{18}{60}=0.3$
The relative frequency for "3" is $\frac{20}{60}\approx0.3333$
The relative frequency for "4" is $\frac{7}{60}\approx0.1167$
The relative frequency for "5" is $\frac{1}{60}\approx0.0167$
