Asked by plz help this nugget
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?
Answers
Answered by
DooDooHead
Do you have answer choices?
Answered by
nuggy
no
Answered by
DooDooHead
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.
Answered by
nuggy
it says its 4/81... kinda confusing but ok
Answered by
nuggy
thanks for trying tho!
Answered by
DooDooHead
Oop. IDK how that is the answer. Maybe if you google it you'd find out how. Thanks for the answer on mine
Answered by
DooDooHead
Use this:
varsity tutors . com / gre_math - help / how - to - find - the - probability - of -an - outcome
varsity tutors . com / gre_math - help / how - to - find - the - probability - of -an - outcome
Answered by
nuggy
np
Answered by
oobleck
each draw has chance of 2/9
so two draws has chance of 2/9 * 2/9 = 4/81
so two draws has chance of 2/9 * 2/9 = 4/81
Answered by
i need tp for my bunghole
oooh. makes sense now. So (2/9)^2?
Answered by
nuggy lord
wow, give this person an award for being so helpful! thanks dude
Answered by
classic
is this right?
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