22
QuizMultiple Choice
Unit Test
Question 22 of 22 • S1S-OC: Pre-Calculus B (E3710 - AG)
The times taken to assemble a clock at a factory are approximately normally distributed with a given mean = 3 hr and standard deviation = 0.5 hr. What percentage of the times are between 2 hr and 4 hr?
Answer
A
34%B
47.5%C
68%D
95%