1.
An urn contains different colored marbles. The probability of drawing two green marbles from the urn without replacement is 320 , and the probability of drawing one green marble is 25 .
What is the probability of drawing a second green marble, given that the first marble is green?
1/5
3/8
3/50
1/2
K12?? Im on the same question..you ever find the answer?
Please do not post questions multiple times!
As I have stated elsewhere this is a rubbish question.
Probablilities must be between 0 and 1.
I think this question is probably meant to read:
"An urn contains different colored marbles. The probability of drawing two green marbles from the urn without replacement is 3/20 , and the probability of drawing one green marble is 2/5 .
What is the probability of drawing a second green marble, given that the first marble is green?"
If so, then:
.