Therefore the genes for male-producing tendencies spread, and male births become more common.

This combination of both conditions is estimated to occur in between 20-30 million male births.

There have been no male births in the imperial family since 1965.

Jessica knew she had preempted their plans by moving the male birth up by a full generation.

Official birth records have shown a rise in the level of male births since the policy was brought into law.

Infants could die and the lack of male births was always a risk.

The incidence of Hunter syndrome is estimated to be 1 in 100,000 to 150,000 male births.

The observed proportion of male births is thus 49,581/98,451 0.5036.

In other words, it is very likely that the proportion of male births is above 0.5.

It occurs in 1 in 18,000 to 40,000 male births.