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Exercise 11

Avg difficulty 2.5

A bag contains 2 black marbles, 4 orange marbles, and 20 yellow marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is black, you win $3. If it is orange, you win $2. If it is yellow, you lose $1.

  1. Make a probability model for this game.

  2. What is your expected value if you play this game?

  3. Should you play this game?

Lee et al., Math in Society, Probability — Chapter 4 Review, Exercise 11

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Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.