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Odds & math

Expected value, house edge, variance and drop rates, worked through with real numbers.

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Odds

Expected value of a CS2 case: how to calculate it in five minutes

Expected value tells you what a case returns on average. Here is the formula, a fully worked example, and the three mistakes that make most EV numbers wrong.

Odds

CS2 case odds and rarity tiers

Read the probability, not the colour: odds tables, expected value and house edge.