March 24, 2017

Post a New Question

Posted by on Monday, April 29, 2013 at 11:21am.

the scoring of IQ tests is designed so that the scores of the test taking population are normally distributed with a mean of 100 and a standard dev of 15.
what percent of the population have an IQ less than 92?

how do i figure this out?

  • Statistics - , Monday, April 29, 2013 at 2:14pm

    Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Multiply by 100.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question