A friend of yours, Phil, writes to you asking about a new scratch-off lottery game. It costs $10 to play this game. There are two outcomes for the game (win, lose) and the probability that a player wins a game is 60%. A win results in $15, for a net win of $5. Aligns with S-MD.A.2 and S-MD.B.5.

Concepts

expected value

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Additional Tags

lottery game, probability distribution, cc by-nc-sa 4.0, creative commons attribution-noncommercial-sharealike 4.0, illustrative mathematics: s-md.2, 5 sounds really good! (sort of), s-md.a.2, probability applications

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Classroom Considerations

• Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice