Qualification > Math
STATISTICS
ocean:
--- Quote from: candy on May 26, 2009, 06:01:49 pm ---can someone please explain me the answer for this question..and why that method is used to solve! :'( :'(
--- End quote ---
for this question we first find out the probabilities of the two groups seperately and multiply them. we divide each group's arrangement by the number of similar objects it has, so:
for the first group:
6!/4!2! = 15
for the second group:
6!/2!3! = 60
15x60=900
there are 900 possible arrangements
candy:
Thanx a lot ocean!! :D :D
saadkhan:
how do we do o/n 01 q7??????? is dere any oder method apart frm da 1 in solved pprx???
night_buster:
Dude
u have to do
1/6 ----Beacuse out 6 paper clip in Box A They r asking probablity for picking Red
7/10 ----Beacuse out of 10 paper clip in box B Then r asking probablity of getting Reds will b in 7/10 ways
Therefore
Total Probablity of this Sub-part of the question is [(1/6 X 7/10)]
=(7/60)
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