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2. At an oral auction for used car, half of all bidders have a value of $1,500 and half have a value of $1,900. What is the expected winning bid if there are three bidders

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Answer:  $1,700

Explanation:

The expected winning bid is the weighted average of the 2 different bids.

Half of the bids are for $1,500 so weight of $1,500 is 0.5.

Half of the bids are for $1,900 so weight of $1,900 is 0.5.

Expected Winning bid = (1,500 * 0.5) + ( 1,900 * 0.5)

= 750 + 950

= $1,700

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