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13.07.2022 - 06:56

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. According to the Wechsler IQ testing agency, a person with an IQ of 40 or below is an Idiot. What proportion of IQ test takers are not Idiots?

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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. According to the Wechsler IQ testing agency, a person with an IQ of 40 or below is an Idiot. What proportion of IQ test takers are not Idiots?

Answers (1)

Fay April 16, 2023 в 07:07

The first step in solving this problem is to standardize the IQ score using the formula: z = (X - mu) / sigma where z is the standardized score, X is the IQ score, mu is the mean, and sigma is the standard deviation. For an IQ of 40 or below: z = (40 - 100) / 15 = -4 To find the proportion of IQ test takers who are not Idiots, we need to find the area under the normal curve to the right of this z-score. We can use a table or calculator to find this area, which is \approx imately 1.00. Therefore, the proportion of IQ test takers who are not Idiots is 1.00 or 100%.

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Find the right answer to the question IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. According to the Wechsler IQ testing agency, a person with an IQ of 40 or below is an Idiot. What proportion of IQ test takers are not Idiots? by subject Math, and if there is no answer or no one has given the right answer, then use the search and try to find the answer among similar questions.

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