Answer
See the picture.
Work Step by Step
Total: $6+435+1053+1197+958+489+106=4244$ thousands births.
The relative frequency for "10–14" is $\frac{6}{4244}\approx0.6776$
The relative frequency for "15–19" is $\frac{435}{4244}\approx0.1025$
The relative frequency for "20–24" is $\frac{1053}{4244}\approx0.2481$
The relative frequency for "25–29" is $\frac{1197}{4244}\approx0.2820$
The relative frequency for "30–34" is $\frac{958}{4244}\approx0.2257$
The relative frequency for "35–39" is $\frac{489}{4244}\approx0.1152$
The relative frequency for "40–44" is $\frac{106}{4244}\approx0.0250$
