Question

If there are 3 blue marbles, 2 red marbles, and 4 green marbles in a bag, what is the probability of drawing 2 red marbles if you replace the first one after you draw it?

Answer 1

Do you have answer choices?

Answer 2

no

Answer 3

I could be wrong, but since there are 9 marbles altogether and only 2 red marbles, i'd say 2/9. But, like i said, i could be wrong.

Answer 4

it says its 4/81... kinda confusing but ok

Answer 5

thanks for trying tho!

Answer 6

Oop. IDK how that is the answer. Maybe if you google it you'd find out how. Thanks for the answer on mine

Answer 7

Use this:
varsity tutors . com / gre_math - help / how - to - find - the - probability - of -an - outcome

Answer 8

np

Answer 9

each draw has chance of 2/9
so two draws has chance of 2/9 * 2/9 = 4/81

Answer 10

oooh. makes sense now. So (2/9)^2?

Answer 11

wow, give this person an award for being so helpful! thanks dude

Answer 12

is this right?