A bag contains 4white and 3 red balls if two balls are randomly selected and removed from the box given first removed is white the probability that the second is red?
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Answered by
5
total outcomes left=7-1=6
favourable outcomes= 3(red balls)
probability=3/6=1/2
favourable outcomes= 3(red balls)
probability=3/6=1/2
Answered by
5
P(same colour) =(W and W) or (B and B)
(in probability or means + & and means * )
P= 5/8*4/7 + 3/8*2/7
P=20/56+6/56=26/56=13/28
P=13/28
(in probability or means + & and means * )
P= 5/8*4/7 + 3/8*2/7
P=20/56+6/56=26/56=13/28
P=13/28
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