SOLUTION: Please help me solve this equation: A box contains 10 tickets.Four of the tickets carry a prize of RO 100 each and others prizes are of RO 50 each. If one ticket is drawn, what is

Algebra ->  Probability-and-statistics -> SOLUTION: Please help me solve this equation: A box contains 10 tickets.Four of the tickets carry a prize of RO 100 each and others prizes are of RO 50 each. If one ticket is drawn, what is      Log On


   

Question 874767: Please help me solve this equation: A box contains 10 tickets.Four of the tickets carry a prize of RO 100 each and others prizes are of RO 50 each. If one ticket is drawn, what is the expected value of the prize?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
If ALL 'others' are RO 50 Winners AND no charge for the tickets
E = %281%2F10%29100+%2B+%289%2F10%2950 = RO145