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Find the Probability of their Childen

label Mathematics
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Sep 7th, 2014

a)  outcome - possible results of a random experiment is called its outcome .

b) set - all outcomes expressed in set .

c) trial - performence of a random experiment is called trial .

d) sample space - all possible results of an experiment is called sample space

e) event - it is occurrence of happening

for 3 childen boy = B , girl =G

sample space BBB , BBG , BGB , BGG , GBB , GBG , GGB , GGG

If order is also considered , 

 probability of having 2 boys = ( favourable events ) / total events)

                                              = 3/8 

other wise 

BBB , BBG , BGG , GGG

 probability of having 2 boys = ( favourable events ) / total events)

                                             = 1/4

 


Sep 7th, 2014

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