Author Question: The IQ curve is normal, with a mean of 100 and a standard deviation of 15. If normal IQ is defined ... (Read 27 times)

billyboy7272 · **on:** Feb 26, 2023

Question 1

The following is an abbreviated list of scores from a recent exam. Which exam score is the 15th percentile?

82	88	74	84	70	98
62	28	51	98	100	56

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98

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28

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51

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56

Question 2

The IQ curve is normal, with a mean of 100 and a standard deviation of 15. If “normal” IQ is defined as a score within 1 standard deviation of the mean, what range of scores is considered “normal”?

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85–115

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75–125

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100–115

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85–100

KAyteeBee1129 · **Reply #1 on:** Feb 26, 2023

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