Alex, who is risk-neutral, is looking for an apartment. The distribution of apartments of
equal quality is as follows: 70% rent for $700 per month, 20% rent for $600 per month,
and 10% rent for $500 per month. Alex’s costs of searching rise by $10 with each
search.
The first apartment Alex visits rents for $700. What is the expected value of visiting a
second apartment?
A. $20
B. $30
C. $40
D. $50
You need a TV, DVD player, and CD player. The sale flyer from a store downtown
shows that the TV that you want to buy is on sale for 10% off of the regular price this
week. DVD and CD players are both on sale for 20% off next week. Last week you
drove downtown to save $30 on some concert tickets, a 15% savings. The regular prices
for TVs, DVD players, and CD players are given in the table below.
Suppose instead that the DVD player is on sale for 20% off and the CD player is on sale
for 5% off regular price. Should you drive downtown to buy the DVD and the CD
player?
A. Yes, because you will save $24.
B. Yes, because you will save $34.
C. Yes, because you will save $64.
D. Yes, because it is always worth it to drive downtown to earn a 20% discount.