IQ scores based on the Wechsler Adult Intelligence Scale are assumed to be normally distributed with a mean of 100 and a standard deviation of 15. The label 'Genius' is given to people whose IQ scores are 2 standard deviations above the mean. What IQ score do people need to have to be labeled a 'Genius'?A) 70B) 85C) 115D) 130

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IQ scores based on the Wechsler Adult Intelligence Scale are assumed to be normally distributed with a mean of 100 and a standard deviation of 15. The label 'Genius' is given to people whose IQ scores are 2 standard deviations above the mean. What IQ score do people need to have to be labeled a 'Genius'?A)  70B)  85C)  115D)  130

Ricardo Aguante · Accepted Answer

Final Answer : D, Explanation :  Two standard deviations above the mean would be 2 x 15 = 30. Adding this to the mean of 100 gives an IQ score of 130 as the threshold for being labeled a 'Genius.'

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