Math / IQ / normal population question?

Question

A high school with 1,200 students is placing students with an IQ score of 130 and above in an accelerated class. Assuming a normal population, approximately how many students will be assigned to the accelerated class?

Answer 1

between 10 & 20%

Answer 2

Around 1% of the global population are at 130+

So the answer would be 12

http://www.fourmilab.ch/documents/IQ/195...

But the western nations are going to be higher.

It's not possible to answer correctly because the words normal population are vague.

Answer 3

An IQ of 130 would put a student in the 98th percentile. This means that on average, 2 out of every 100 students would qualify for the accelerated class. A 1,200 student population would therefore yield approximately 24 students for the accelerated class.

Answer 4

The standard deviation of IQ is kept at 10 points, and the mean at 100, just FYI.

Answer 5

The standard deviation for IQ is about 15 points. An IQ 130 or above lies two standard deviations above the norm.

The % of the population outside 2 standard deviations is roughly 5%, but since we are looking at only the top half we have to cut this in half to 2.5%

multiply 1200 x 0.025 and you get 30.

http://www.iqcomparisonsite.com/IQBasics...

Answer 6

36