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An urn contains six red balls and four green balls. A sample of seven balls is selected at random.

Find the probability that five red and two green balls are selected.

Find the probability that all balls selected are red.

Find the probability that at least four red balls are selected.
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Respuesta :

AshNo

There are 10 balls in the Urn Total.

Red: 6

Green: 4

Question One: The probability that five red and two green is selected is likely. (as that is over half for both)

Question Two: Impossible. There is only 6 red balls, and 7 are taken from the urn. Thus it would at most be possible for 6 red and 1 green.

Question Three: At least four is likely, as  there is more red then green in the Urn.

Hope I helped!

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