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An urn has 16 balls that are identical except that 8 are white and 8 are...

An urn has 16 balls that are identical except that 8 are white and 8 are red. A sample of 9 is selected randomly without replacement.

What is the probability that exactly 7 are white and 2 are red?

What is the probability that at least 7 of the balls are white?

Math   Statistics-And-Probability   
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