Macmillan Learning How old are women when they have their first child? The table displays the distribution of the age of the mother for all firstborn children in the United States in 2017. Age 10-14 years Count Age Count 1,892 30-34 years 329,623 15-19 years 162,536 35-39 years 124,637 20-24 years 395,927 40-44 years 24,049 25-29 years 417,162 45-49 years 2,377 The number of firstborn children to mothers under 10 or over 50 years of age represent a negligible percentage of all first births and are not included in the table. In which age classes do the median and quartiles fall? (Be sure to give all three values before checking your answer.) Answer Bank Q1: 45-49 years 10-14 years 15-19 years 20-24 years 25-29 years median: 35-39 years 30-34 years 35-39 years 30-34 years 45-49 years Q3: 40-44 years