1A Given the data below please calculate the proportion of m

1.A) Given the data below, please calculate the proportion of male births.
Males:144,208
Females:140,319

1.B) From question 1.A, please calculate the sex-ratio at births.

Solution

1 A)The total of births is 144208+140319=284527

So, the proportion of male births is 144208/284527=0.5068 = 50.68%

1 B)

MALE: 0.5068

FEMALE: 1-0.5068=0.4932