a bag contains 2 red, 3 green and 2 blue balls. two balls are drawnat random. what is the probability that none of the balls drawn is blue
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r=2
g=3
b=2
total balls is 7
if 2 balls drawn then the results are
rg,rb,gr,gb,br, bg,rr,gg,bb,
so, number of no blue is 4
so probability is 4/7
thanks
g=3
b=2
total balls is 7
if 2 balls drawn then the results are
rg,rb,gr,gb,br, bg,rr,gg,bb,
so, number of no blue is 4
so probability is 4/7
thanks
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