A dealer decides to sell an antique card by means of an English auction with a reservation price of $200. There are two bidders. The dealer believes that there are only two possible values, $200 and $600, that each bidder’s willingness to pay might take. Each bidder has a probability of 1/2 of having each of these willingness to pay, and the probabilities for each of the three bidders are independent of the others' valuations. Assuming that the three bidders bid rationally and do not collude, the dealer's expected revenue from selling the card is approximately .

Expected revenue = $400

Step-by-step explanation:

Expected revenue is given by the formula;

Expected revenue = Sum of x * p(x)

x = 200

x = 600

p(x) = 1/2

p(x) = 1/2

Substituting, we have;

Expected revenue = 200*1/2 + 600*1/2

                               = 100 + 300

                                = $400

Therefore, expected revenue = $400

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

answer: i can’t tell you that

step-by-step explanation: