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QUESTION:

Problem 3CQ

In Exercise, use the following information. In a standardized IQ test, scores were normally distributed, with a mean score of 100 and a standardized deviation of 15.

Find the probability that a randomly selected person has an IQ score higher than 125. Is this an unusual event? Explain.

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QUESTION:

Problem 3CQ

In Exercise, use the following information. In a standardized IQ test, scores were normally distributed, with a mean score of 100 and a standardized deviation of 15.

Find the probability that a randomly selected person has an IQ score higher than 125. Is this an unusual event? Explain.

ANSWER:

Solution

Step 1 of 1

We have to find the randomly selected person has an IQ score more than 125

Given that IQ scores are normally distributed

And the mean score is 100

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