4
QuizMultiple Choice
Introduction to Normal Distributions
Question 4 of 10 • Math Models B
The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean = 2.5 hr and standard deviation = 0.6 hr. What percentage of the teenagers spend more than 3.1 hr?
Answer
A
5%B
10%C
16%D
32%