SOLUTION: I need your assistance in solving this, i'll be very thankful to you. You buy 5 tickets for a raflle. 100 tickets are sold altogether. Tickets are picked at random. you have not w

Algebra ->  Probability-and-statistics -> SOLUTION: I need your assistance in solving this, i'll be very thankful to you. You buy 5 tickets for a raflle. 100 tickets are sold altogether. Tickets are picked at random. you have not w      Log On


   

Question 855514: I need your assistance in solving this, i'll be very thankful to you.
You buy 5 tickets for a raflle. 100 tickets are sold altogether. Tickets are picked at random. you have not won a prize after the first three tickets have been drawn.
i)What is the probability that you win a prize with either of the next two draws?
ii) what is the probability that you do not win a prize with either of the next two draws?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

first three tickets have been drawn, 97 remaining, 

p(winning) = 5/97, p(losing) = 92/97

i) P(x = 1) = 2C1(5/97)^1(92/97)^1 = .0978

ii) P(x= 0) = (92/97)^2 = .8996