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Posted by on Monday, January 21, 2013 at 10:49pm.

An urn contains 7 red and 3 white marbles. Three marbles are drawn from the urn one after another.
Find the probability that first two are red and third is white if,
a) Marbles drawn are replaced after every draw.
b) Marbles drawn are not replaced after every draw.

  • lpu collage - , Monday, January 21, 2013 at 10:57pm

    What kind of pictures do you use for an ipu collage?

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