8
QuizMultiple Choice
Discrete Random Variables – Mean — Unit test
Question 8 • NC-Math 4
The graph shows the distribution of the amount of time (in minutes) people spend watching TV shows on a popular streaming service. The distribution is approximately Normal, with a mean of 71 minutes and a standard deviation of 15 minutes.
Answer
A
0.15%B
2.5%C
16%D
99.85%