Question

DuLarge Marine manufactures diesel engines for shrimp trawlers and other small commercial boats. One of their CNC machines has caused several problems. Over the past 30 weeks, the machine has broken down as indicated below.


Number of breakdowns per week 0 1 2 3 4
Frequency (Number of weeks that breakdowns occurred) 8 3 5 9 5

What is the expected number of breakdowns per week?

A) 1

B) 2

C) 6

D) 10

E) 30

Answer

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