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Summary statistics of variables used in analyses.
| reproductive success | no. of children born | no. of children died | mortality rate | voice pitch | |
|---|---|---|---|---|---|
| men | M=3.00; s.d.=2.58; N=51 | M=4.8; s.d.=3.76; N=52 | M=1.92; s.d.=1.96; N=51 | M=0.450; s.d.=0.287; N=44 | M=115.76; s.d.=19.75; N=53 |
| women | M=2.42; s.d.=1.97; N=52 | M=3.56; s.d.=2.49; N=52 | M=0.962; s.d.=1.15; N=52 | M=0.273; s.d.=0.322; N=49 | M=209.71; s.d.=36.76; N=54 |
