Table 1: Distribution of parents by age.
|
Father's age (years) |
Mother's age (years) |
||
|
Mean |
34.8 |
27.9 |
|
|
Standard deviation |
7.8 |
7.3 |
|
|
Minimum |
18 |
14 |
|
|
Maximum |
60 |
57 |
|
|
Percentiles |
25 |
29.8 |
22.0 |
|
50 |
35.0 |
27.0 |
|
|
75 |
40.0 |
34.0 |
|