A person randomly selects one of the four envelopes shown above and to the right. Each envelope contains a check that the person gets to keep. However, before the person can select an envelope, he or she must pay $15 to play. Determine the person’s expectation if the checks in the envelopes are as indicated in the exercises.

The checks in the envelopes are for $0, $2, $5, and $20, respectively.

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