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Keyboard: 1–4 pick • E = Explain • R = Sim 200
Coin Cascade NEW
Independent fair coin flips. Work with exact counts, sequences, and “at least” events.
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If you flip 4 coins, what is P(exactly 2 heads)?
Binomial model: C(n,k)/2ⁿ. For a specific sequence like HHT, use (1/2)^length.
Simulation runs independent trials of the same event.
Round: 1/10
Score: 0
Best: 0
Timer: —