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View Full Version : Statistics (Expected Value)


mdrm0829
Apr 20, 2008, 07:10 PM
:confused: The prizes that can be won in a sweepstakes are listed below together with the chances of winning each one. $3,500 (1 chance in 8,800); $2,900 (1 chance in 7,000); $600 (1 chance in 4,700); $200 (1 chance in 2,300). Find the expected value of amount won for one entry if the cost entering is 58 cents.

ISneezeFunny
Apr 20, 2008, 07:43 PM
expected value in this case is technically the sum of (prize)(probability)

(3500)(1/8800) + (2900)(1/7000) + (600)(1/4700) + (200)(1/2300) =