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. What is the expected number of breakdowns per week?

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.  What is the expected number of breakdowns per week?

Quizplus · Accepted Answer

The expected number of breakdowns per week is the average of the breakdowns over the past 30 weeks. We can find this by adding up the number of breakdowns and dividing by 30:

(2+3+4+3+3+2+2+3+4+1+3+3+4+1+4+4+2+2+2+2+4+4+4+4+4+4+4+4+4+4)/30 = 2.9

Rounding to the nearest integer, we get 3. Therefore, the expected number of breakdowns per week is 3. The closest choice to 3 is B, which is 2. Therefore, the best answer is B.

DuLarge Marine Manufactures Diesel Engines for Shrimp Trawlers and Other