This made Jeremy laugh:
Three professors — a physicist, a chemist, and a statistician — are at a department head meeting when a fire breaks out in a wastebasket.
The physicist says, “I know what to do! We must cool down the materials until their temperature is lower than their ignition temperature and then the fire will go out.”
The chemist says, “No! No! I know what to do! We must cut off the supply of oxygen so that the fire will go out due to lack of one of the reactants.”
As the physicist and the chemist debate what to do, the statistician runs around the room lighting more fires.
“What are you doing?!” the physicist and the chemist scream.
The statistician replies, “We’re going to need a larger sample size.”