The percentage of the population that is considered to be highly intelligent (IQ 130+) or very bright (IQ 120+)

IQ (intelligence quotient) is typically distributed in a population according to a bell curve, with the majority of people clustering around the average score of 100. The standard deviation is often set at 15 points.

For IQ scores:

Approximately 68% of the population falls within one standard deviation of the mean (i.e., between IQ 85 and 115).

About 95% fall within two standard deviations (IQ 70 to 130).

Roughly 99.7% fall within three standard deviations (IQ 55 to 145).

Therefore, individuals with an IQ of 120 or higher would fall above the average range, and those with an IQ of 130 or higher would be considered in the top 2.5% of the population.

It's important to note that IQ is just one measure of cognitive ability, and intelligence is a complex trait influenced by various factors. Additionally, the interpretation and use of IQ scores can be controversial, and they don't capture the full spectrum of human capabilities.