the question is on probability.
there are 18 balls,12 red and 6 white.six balls are drawn one by one without replacement.if atleast 4 are white,find the probability that next two draw will result in one red and one white.
i dont need the solution as dis was a problem given in iit and i do hv its solution with me.but my doubt is, as its given that balls are drawn one by one should we write 6c1*5c1*4c1*3C1 or 6c4 taking all of them at a time. and do explain the reason plz
the question is on probability.
there are 18 balls,12 red and 6 white.six balls are drawn one by one without replacement.if atleast 4 are white,find the probability that next two draw will result in one red and one white.
i dont need the solution as dis was a problem given in iit and i do hv its solution with me.but my doubt is, as its given that balls are drawn one by one should we write 6c1*5c1*4c1*3C1 or 6c4 taking all of them at a time. and do explain the reason plz
aishwarya k , 13 Years ago
Grade 12
