17
QuizMultiple Choice

Solving Quadratic Equations: Quadratic Formula — Unit test

Question 17 • FL-1200700-Mathematics for College Algebra MIS

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?

Question illustration
Answer
A
34%
B
47.5%
C
68%
D
95%
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