The distribution for scores of a particular IQ test for adults is approximately normal with mean 100 and standard deviation 15. Given that the probability of IQ less than 106 is 0.6554, find the probability that at least 5 out of a randomly selected groups of 12 adults will have IQ less than 106.

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Originally Posted by saywhat235

The distribution for scores of a particular IQ test for adults is approximately normal with mean 100 and standard deviation 15. Given that the probability of IQ less than 106 is 0.6554, find the probability that at least 5 out of a randomly selected groups of 12 adults will have IQ less than 106.

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