Posted by Valerie on Saturday, March 26, 2011 at 4:08pm.
Suppose you buy 1 ticket for $1 out of a lottery of 3,000 tickets. If the prize for the one winning ticket is to be $1,000, what are your expected winnings?

geometry  MathMate, Saturday, March 26, 2011 at 5:58pm
Take the weighted winning:
(1*1000+2999*0)/3000
=?