Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (lgbasallote):

An urn contains 4 black balls and 6 white balls. What is the probability of getting 1 black ball and 1 white ball on two consecutive draws from the urn?

OpenStudy (lgbasallote):

is the solution to this 4/10 * 6/9 ?

OpenStudy (anonymous):

yup.

OpenStudy (lgbasallote):

a strange feeling tells me there's more to it...

OpenStudy (anonymous):

hmm...i don't think so, though...

hartnn (hartnn):

if they were not replaced....

hartnn (hartnn):

if they were replaced then 4/10 * 6/10

OpenStudy (lgbasallote):

well how do you know if it was replaced based on this kind of wording?

hartnn (hartnn):

u don't.Question unclear.

OpenStudy (anonymous):

it's not unclear. i think it's understood that you don't replace the ball.

OpenStudy (lgbasallote):

i do too

OpenStudy (lgbasallote):

but i still feel it's not as simple as this...

hartnn (hartnn):

then its 4/10 * 6/9

OpenStudy (anonymous):

It is this easy @Igbasallote :)

OpenStudy (anonymous):

it is what it is-Simple. You're getting too worked up over nothing.

OpenStudy (lgbasallote):

it was a question from a board exam back in '96 after all...so it could be a trick

OpenStudy (anonymous):

lol

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!