LOL, odds of having three generations with the same birthday are roughly 900 to one if the women are trying.

generation one, if trying, can get to same month, then it 30 to 1 on it being same day.

same math for generation 2 giving a little over 900 to 1 for 3 generations.  

Now odds of generation 1 being born on hallowee at random are 364 to 1.

 

Bill

 

People that know everything by definition can not learn anything