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.
IQ stands for Intelligence Quotient. It is your mental age divided by you chronological age. The average IQ is 100, and most people are within 15 points from that. If you scor â¦ e above 115 you are considered very smart, and if you score above a 130, you are considered a genius. if you score below an 85, you are considered dumb, and if you score below a 70, you are considered mentally retarded.