Question

In: Statistics and Probability

Suppose we are interested in bidding on a piece of land and we know one other...

Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $10,200 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $10,200 and $14,600.

a. Suppose you bid $12,000. What is the probability that your bid will be accepted (to 2 decimals)?

b. Suppose you bid $14,000. What is the probability that your bid will be accepted (to 2 decimals)?

c. What amount should you bid to maximize the probability that you get the property (in dollars)?

d. What is the expected profit for this bid (in dollars)?

Solutions

Expert Solution

a.

probability that your bid will be accepted = P(x < 12,000)

= (12,000 - 10,200) / (14,600 -  10,200)

= 0.4090909

b.

probability that your bid will be accepted = P(x < 14,000)

= (14,000 - 10,200) / (14,600 -  10,200)

= 0.8636364

c.

Let Y be the amount you bid.

probability that your bid will be accepted = P(x < y)

= (y - 10,200) / (14,600 -  10,200)

=  (y - 10,200) / 4400

The maximum probability that you get the property, will be for the maximum value of y.

We know that the probability lies between 0 and 1.

Thus,

0 <  (y - 10,200) / 4400 < 1

0 < y - 10,200 < 4400

10,200 < y < 14600

The maximum value of y is 14600.

Thus, you should bid for $14,600 to maximize the probability that you get the property.

d.

When you bid for $14,600,  the probability that you get the property is 1.

If you know someone is willing to pay you $A for the property.

Expected profit for this bid = probability that you get the property * ($A - $14,600)

= 1 * $(A - 14,600)

= $(A - 14,600)


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