Half of Americans believe their house is haunted with a ghost

A recent study found that about half of Americans believe their home is haunted with a ghost. Some say they have seen activity on their security cameras.
A surveillance camera captured some strange happenings at 3 a.m. in a hallway at an Irish school that is rumored to be haunted.
Is it a ghost? What are your thoughts?
These stories are from an online article from Today.com