5
QuizMultiple Choice
Introduction to Normal Distributions
Question 5 of 10 • LAUSD-Algebra II B (Prescriptive) - Summer
The set of life spans of an appliance is normally distributed with a mean = 48 months and a standard deviation = 8 months. What is the z-score of an appliance that stopped working at 64 months?
Answer
A
–2B
–1C
1D
2