SOLUTION: A box contains one each of $1, $5, $10, $20, and $100 bills. It costs $16 to reach in and withdraw one bill. What is the expected value? $

Algebra ->  Probability-and-statistics -> SOLUTION: A box contains one each of $1, $5, $10, $20, and $100 bills. It costs $16 to reach in and withdraw one bill. What is the expected value? $       Log On


   



Question 1162277: A box contains one each of $1, $5, $10, $20, and $100 bills. It costs $16 to reach in and withdraw one bill. What is the expected value?
$

Answer by ikleyn(52818) About Me  (Show Source):
You can put this solution on YOUR website!
.

There are 5 bills with the probability to draw  1%2F5  for each bill.


The expected value to draw  is  %281+%2B+5+%2B+10+%2B+20+%2B+100%29%2F5 = 136%2F5 = 27.2  dollars.


The question is posed by unclear way, so I will stop at this point.