I have a Harry Potter-related math question for those who are brave enough to venture.
Let's assume that the gene that creates a Muggle-born child is a carrier recessive gene that needs the child to have both recessive genes in order with be born with magic. That being said, the chances of two carrier parents having a magical child is 1/4.
Now, that being said, what would be the chances of a pair of carrier parents having five children, all born with magical abilities?
Brownie points if you can show your work!