Mathematics, 28.09.2020 01:01 boyettalexandra

A person randomly select one of four envelopes. 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 of the checks in the envelopes are for $0, $2,$8,and $16.
What is the expected value?

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