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IQs as measured by the Wechsler Adult Intelligence Scale are approximately Normally distributed with mean 100 and standard deviation 15. According to the 68-95-99.7 Rule, about _______ percent of adults will have IQs of at least 70.

Respuesta :

Answer:

97.58 %

Explanation:

Using the normal distribution curve

N = percentage o of IQ not less than 70

N = 13.59+34.13+34.13+13.59+2.14 = 97.58 %

Approximately 97.58 percent of the population has iq scores not less than 70

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