IQ scores for the general adult population form a nearly

Last updated: 10/3/2023

IQ scores for the general adult population form a nearly normal distribution with mean 100 pts and standard deviation 15 pts Verify that the 68 95 99 7 rule works for this distribution The distribution is graphed below and each box represents 1 of the data 60 Figui nities for falling within 1 2 and 3 standard deviations of the mean in a normal distribution 70 b P x 70 pts 80 d P 85 x 115 90 100 Using the 68 95 99 7 rule find each of the following probabilities a P x 130 pts P a randomly selected person scores 130 pts or higher Insert your answer here i i 110 120 i Insert your answer here c P a person is more than 15 points different from the average in either direction i Insert your answer here Insert your answer here 130 140