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10 cards from this deck
Expected frequency = P(A) × number of trials
Probability = successful outcomes ÷ total outcomes
Probability = 2/6 = 1/3 (numbers 5 and 6)
It does not guarantee actual outcomes in real trials
It wouldn't make sense; can't expect more events than trials
Ensure it's reasonable — it can't be more than total trials
Use fractions directly without converting to decimals
To ensure the expected frequency makes sense given the trials
Expected = (1/3)×150 = 50 rolls
Expected = 1/2×80 = 40 heads
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