Question

a family has born two children what is the probability of at least 1 girl

Answer 1

let boy be B and girl be G..
Now, Sample Space will be { BB,BG,GB,GG } ..
PROBABILITY for getting one girl..
= { BG,GB,GG } ..
P ( G ) = 3/4...
4 IS total outcomes...

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Answer 2

3/4 is your answer.


Because they is a chance to get

one girl and one boy

one boy and one girl

one boy and one boy.

one girl and one girl.


From the above data .

we can get the 3 as favourable outcomes.

And total outcomes = 4.

So, the answer is 3/4.