Discrete probability distribution

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Every time a machine breaks down at the Dynaco Manufacturing Company (Problem A), either 1, 2, or 3 hours are required to fix it, according to the following probability distribution:

Repair Time (hr.)

Probability

1

.30

2

.50

3

.20

 

1.00

The Dynaco Manufacturing Company produces a product in a process consisting of operations of five machines. The probability distribution of the number of machines that will break down in a week follows:

Machine Breakdowns per Week

Probability

0

.10

1

.10

2

.20

3

.25

4

.30

5

.05

 

1.00

Question: The Dynaco Company is considering a preventive maintenance program that would alter the probabilities of machine breakdowns per week as shown in the following table:

Machine Breakdowns per Week

Probability

0

.20

1

.30

2

.20

3

.15

4

.10

5

.05

 

1.00

Reference no: EM1319969

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