Answer
See the picture.
Work Step by Step
Cumulative frequency for "10–14" is $6$
Cumulative frequency for "15–19" is $6+435=441$
Cumulative frequency for "20–24" $6+435+1053=1494$
Cumulative frequency for "25–29" is $6+435+1053+1197=2691$
Cumulative frequency for "30–34" is $6+435+1053+1197+958=3649$
Cumulative frequency for "35–39" is $6+435+1053+1197+958+489=4138$
Cumulative frequency for "40–44" is $6+435+1053+1197+958+489+106=4244$
