Answer:
4.4% of the population with IQ between 120 and 125.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 100
Standard Deviation, σ = 15
We are given that the distribution of IQ scores is a bell shaped distribution that is a normal distribution.
a) Let X be a person's IQ score.
Then, density functions for IQ scores is given by:

b) P(population with IQ between 120 and 125.)
Formula:



Answer:
24... I hoped dis helped.
Answer:
114.75
Step-by-step explanation:
You just multiply 25.50 by 4.50 :))
Hope this helps and sorry if I'm wrong.
Have a wonderful rest of your day. <3
Answer:
A,B,D
Step-by-step explanation: