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Q: What percentage of the population have IQ of 85 or less?
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What percentage of the population has an average IQ?

You need to rephrase the question to get a meaningful answer. The average IQ is 100 and only a small percent have exactly that IQ. Most, however, are within the range of 85-100.


What percentage of the US population has an IQ over 145?

Less than 1%, I would imagine.


What percentage of the population has an above average IQ?

50% of the population has an above average IQ.


What is the percentage of population with an IQ of 128?

Approximately 6.68% of the population falls within one standard deviation above the mean IQ score of 100, which includes an IQ of 128.


William scored 170 out of 200 in a test so what percentage is that?

85%. What has that to do with IQ?


Percentage of population that has an IQ above 100?

Fifty percent of the population has an IQ above 100.~Dr. B.~


What percentage of the population has an IQ below 100?

50% of the population would have an IQ of 100 or lower.


What percentage of the population has an IQ above 131?

About three percent.


What percentage of people score between 85 and 115 on IQ tests?

68% of all people.


If 68 percent of IQ scores are between 85 and 115 what is the probability of meeting a person in the population within that IQ range?

The probability is 0.68


What is the average on IQ test?

The average IQ is 100, with two-thirds of the population having IQs between 85 and 115, and 95% of the population having IQs between 70 and 130.


IQ scores are normally distributed with a mean of 100 and a standard deviation of 15 if a certain statistician has an IQ of 140 what percent of the population has an IQ less than he does?

About 98% of the population.