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lpu collage

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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 - ,

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

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