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August 1, 2015

Homework Help: Probability

Posted by Anonymous on Friday, February 28, 2014 at 7:49pm.

Statistics show that about 5% of all males are colorblind. Suppose that 20 males are selected at random.

What is the probability that at least 4 of the 20 people are colorblind?
My answer: I got 1-0.984
The answer key says 0.00257394

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