busbars can have a cross sectional area of as little as 10 square millimetres 0 016 sq in but electrical substations may use metal tubes 50 millimetres 2 0 in in diameter 20 square millimetres 0 031 sq in or more as busbars
IQ bell curve. Standardized IQ tests are designed so that the exact average (mean) IQ score in the general population is 100. An âaverage IQ scoreâ or ânormal IQ scoreâ can be defined as a score between 85 and 115. 68% of people score between 85 and 115. The Mensa qualifying IQ score is a score that puts you in the top 2% of the population in a bell curve like this one. The Mensa qualifying score is 130 or higher, as shown below.
The highest IQ ever estimated was the 300 IQ of William James Sidis. The highest IQ of a person alive today and recorded is the 228 IQ of Marilyn vos Savant.Both of these IQs â¦ were ratio IQs, meaning they were calculated by figuring out the person's mental age based on how many questions they answered and then using the formula Mental age/chronological age * 100.he more detailed and accurate answer is German polymath Johann von Goethe IQ = 210, the ceiling IQ according to Cox's 1926 book â¦ Early Mental Traits of 300 Geniuses. The true highest ever recorded IQ was Marilyn vos Savant, with an IQ of 228. No four year old has ever been recorded to ever have an IQ higher than 170.