a father purchases dress for his three daughter. the dresses are of same color but of different size .the dress is kept in dark room .what is the probability that all the three will not choose their own dress.
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the probability of all the three will not choose their own dress is 6
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probabilty of all three will not choose their own dress is
1 - probability of first daughter to find right dress + 1 - probability of second daughter to find right dress + 1 - probability of third daughter to find right dress =
1 - 1/3 + 1- 1/3 + 1- 1/3
2/3 + 2/3 + 2/3
1 - probability of first daughter to find right dress + 1 - probability of second daughter to find right dress + 1 - probability of third daughter to find right dress =
1 - 1/3 + 1- 1/3 + 1- 1/3
2/3 + 2/3 + 2/3
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