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3-84.

A spinner divided into 3 sections. One fourth section is labeled negative $6. Three eighths section is labeled $3. Three eighths section is labeled $5. The probability of winning on the spinner at right is equal to the chance of winning . Calculate the expected value for one spin. Is this game fair?

Refer to the Math Notes box in Lesson 3.2.1.

Part of the calculation for the expected value is .

Is the game fair?
That means the amount you win is equal to the amount you lose, or the expected value is .