Jtblack2720
29.07.2019 •
Mathematics
Question 10 an urn contains two white marbles and one black marble. a marble is drawn from the urn without replacement and put aside without my seeing it. then a second marble is drawn, and it is white. what is the probability that the unknown removed marble is white, and what is the probability that it is black?
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Ответ:
P(white + white) = (2/3)(1/2) = 2/6 = 1/3
P(white + black) = (2/3) (1/2) = 2/6 = 1/3
Ans: (a) 1/3 (b) 1/3
Ответ:
I think its -16 2/3 but i could be wrong
Step-by-step explanation: