How many standard deviations is a genius?

The Stanford-Binet and many school tests have a mean of 100 and a standard deviation of 16, so Mensa’s qualifying score is 132.

How many IQ points is a standard deviation?

15 points
The mean, or average, IQ is 100. Standard deviations, in most cases, are 15 points.

What IQ score is 2 standard deviations above the mean?

In other words, a person who has an IQ score of 115 has an IQ score that is 1 standard deviation above the mean. A person who has an IQ score of 70 has an IQ score that is 2 standard deviations below the mean.

What IQ score is 2 standard deviations below the mean?

70
Deviation IQ Scores Further, we would expect that 95\% of the distribution lies within 2 standard deviations of the mean (that is IQs between 70 and 130). Thus, scores that fall above 130 and below 70 would be considered unusually high and unusually low, as only 5\% of the population obtains higher or lower scores.

What is the IQ range with a higher standard deviation?

A higher standard deviation means there is a greater spread in the results. The light blue shaded portion of the graph represents one standard deviation above and below the average IQ. As you can see, roughly 68\% of people fall in this range of IQs between 85 and 115.

What is the average IQ range between 85 and 115?

So one standard deviation either above or below the mean is IQ scores from 85 to 115. This means that 68\% of the population will have IQ scores between 85 and 115. Two standard deviations from the mean will cover scores from 70 to 130. 95\% of the population will have IQ scores that are within 2 standard deviations of the mean.

What percentage of people have an IQ of 130?

Roughly 68\% of humans will have IQ scores that fall between 85 and 115, or one standard deviation above or below the average human IQ. Expanding the curve out a little further to two standard deviations, you’ll find that over 95\% of people will fall between 70-130 on the IQ scale.

What does 1 standard deviation from the mean mean?

As seen above one standard deviation from the mean will take in 68\% of all data in a normal model, two standard deviations from the mean will take in 95\% of the data. Many IQ tests have μ = 100 and σ = 15. So one standard deviation either above or below the mean is IQ scores from 85 to 115.