Answer: 17
2^2 is 4
45/9 is 5
Multiply 4•5 to get 20
Subtract 3
Answer: 34%.
By definition of normal distribution, ≈68% of the data is within 1 standard deviation of the mean. Therefore 68% of IQs are between 85 and 115, and half of that is on the lower end, 85 to 100.
This is clearly false as it will just mess up the question.
