Question 411642
for P(2 red ribbons) both ribbons must be red.

probability that first is red = 9/ 25


probability that second is also red = 8/24   
(as ribbon not replaced, after taking first only 8 red ribbons in total 24 )


for P(2 red ribbons) both event must be occur 


so P(2 red ribbons) = (9/25) * (8/24) = 3/25  



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