SOLUTION: if melinda buys two tickets at the spring fling since there is a $1000 prize, one $500 prize, and five $100 prizes. there were a total of 1000 tickets sold at $3 each. what is mel

Algebra.Com
Question 925953: if melinda buys two tickets at the spring fling since there is a $1000 prize, one $500 prize, and five $100 prizes. there were a total of 1000 tickets sold at $3 each. what is melinda's expectation
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
if melinda buys two tickets at the spring fling since there is a $1000 prize, one $500 prize, and five $100 prizes. there were a total of 1000 tickets sold at $3 each. what is melinda's expectation
-----
Random winning values:::..... 994........494.......94.......-6
Matching probabilities::..... (2/1000)..(2/1000)..10/1000..986/1000
==============================
E(x) = [2*994 + 2*494 + 10*94 - 6*986]/1000
------
= -2000/1000
------
= -$2.00
--------------------------
Cheers,
Stan H.
--------------------------

RELATED QUESTIONS

a lottery offers one $1000 prize, one $500 prize, and five $100 prizes. one thousand... (answered by Theo)
A lottery offers one 1000$ prize one 500$ prize and five 100$ prizes One thousand tickets (answered by Boreal,ikleyn)
A lottery offers on $1000 prize, one $500 prize and five $100 prizes. Seven hundred... (answered by ikleyn,greenestamps)
A lottery offers one $800 prize, two $500 prizes, two $400 prizes, and four $100... (answered by ikleyn,greenestamps,Edwin McCravy)
Please help me solve this problem I came up with the answer of .182 but that just does... (answered by solver91311)
A lottery has one $2000 prize, two $1000 prizes, and ten $500 prizes. Two thousand... (answered by edjones,jrfrunner)
a lottery offers one $1000 prize, two $700 prizes, three $300 prizes, and four $200... (answered by Theo)
Lottery Prizes A lottery offers one $900 prize, two $700 prizes, two $400 prizes, and... (answered by greenestamps,ikleyn)
Suppose that 1,000 tickets are sold for a raffle. If there is one prize of $2,500, two... (answered by jim_thompson5910)