Question: If you toss a coin ten times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
Answer: There's a 50 percent chance it will land heads up. The final coin toss is independent of the first ten tosses.
Question: One day a man broke his leg. When he was sent home from the hospital he had to use a wheelchair. The doctors told him he could not go up stairs. When the man got home he realized he had stairs to get into his house on both sides. The man saw his neighbor, the doctor who x-rayed him at the hospital, getting out or her car. The man asked "can you carry me up the stairs?" The woman replied "no." Why?
Answer: She told the man he could not go up stairs