أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
the site automatically remove the numbers from my answer its answer is "one divided by three sixty five"
If A is the event that persons have birthday at the same day then A' be the event that they have not,
P(A') = (/)x(/) =/
then probability of birthday at the same day is
P(A) =1- P(A') =1 -/ =1/
