Answer
$P(E)=\frac{31}{365}\approx0.0849$
It means that, if we randomly select 3650 people, we would expect that the number of people that were born in December is about 310.
Work Step by Step
Event = "born in December". December has 31 days, so $N(E)=31$
One year = 365 days, so $N(S)=365$
Using the Classical Method:
$P(E)=\frac{N(E)}{N(S)}=\frac{31}{365}\approx0.0849$
