Probability & Chance
📋 What it is
Probability measures how likely something is (0 = never, 1 = certain); it guides smart guesses under uncertainty.
🗣️ Coach says
Some escape clues involve chance — “which is more likely?” Probability puts a number on it. A fair coin is 1/2 heads. The trap is thinking a run of heads makes tails “due” — each flip is independent and forgets the past.
🧠 Memory hook
Each independent event forgets the past — a coin has no memory.
😂 Giggle
Why did the escape room player bring a ladder?
They heard the next clue was on another level!
😲 Whoa!
People are so sure a run of heads means tails is “due” that casinos profit from it — this “gambler’s fallacy” has cost real fortunes, but each spin truly is independent.
✅ Quick check: A fair coin lands heads 4 times. Is tails now MORE likely next flip?
Say your answer out loud first — then reveal.
No — still 1/2; the coin has no memory, so past flips don’t change the next one (gambler’s fallacy).
Independent events don’t change probability based on past outcomes.
🧪 Try it! (2 minutes)
Flip a coin 10 times and tally. Did heads and tails come out exactly 5-5? (Often not — and that’s normal.)