Jennie purchased 5 of the 200 tickets at the raffle. There will be two drawings for a prize. The probability that Jennie will win both of the prizes is 1 out of ____.
1,592
1,600
1,990

Question

Jennie purchased 5 of the 200 tickets at the raffle. There will be two drawings for a prize. The probability that Jennie will win both of the prizes is 1 out of ____.
1,592
1,600
1,990

auctoratrox · Answer

(1/40)(1/40) = 1/1600

anonymous · Answer

P (winning ticket) = 5/ 200 = 1/40
P ( 2 winning tickets) = ( 1/40 ) ^2 = ...

anonymous · Answer

Probability= 5/200 x 4/199 =1/1990
1st drawing there are 5 tickets which are Jennie's and a total of 200 tickets. So after drawing the 1st ticket, 4 tickets are Jennie's and left with a total of 199 tickets to draw, hence the 4/199.