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Mathematics 11 Online
OpenStudy (anonymous):

Two card is drawn from a pack of 52cards Find the Probability that (a) one is an ace and other is black queen (ii) one is heart and the other is spade

hartnn (hartnn):

2 cards r drawn, right ?

OpenStudy (anonymous):

Yes

hartnn (hartnn):

how many ace r there ? and how many black queen ?

OpenStudy (anonymous):

4 and 2

OpenStudy (anonymous):

4C1 * 28 C1 / 52C2...... right?

hartnn (hartnn):

with or without replacement ?

OpenStudy (anonymous):

Not mentioned....

hartnn (hartnn):

28 ?? or 2 ?

OpenStudy (anonymous):

i think it is with out replacement

hartnn (hartnn):

did u mean 4C1 * 2C1 / 52C2 ?

OpenStudy (anonymous):

Yes

hartnn (hartnn):

then its correct.

OpenStudy (anonymous):

ok.. For second one 13C1 * 13C1 / 52C2

hartnn (hartnn):

absolutely!

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