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Cyco Cyco
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6 years ago
ABC Manufacturing has 6 machines that perform a particular task. Breakdowns occur frequently for this machine. Past records indicate that the number of breakdowns that occur each day is described by the following probability distribution:

Number of Breakdowns   Probability
0   0.4
1   0.3
2   0.2
3   0.1
More than 3   0.0

(a) What is the expected number of breakdowns in any given day?
(b) What is the variance for this distribution?
(c) What is the probability that there will be at least 2 breakdowns in a day?
Textbook 
Quantitative Analysis for Management

Quantitative Analysis for Management


Edition: 12th
Authors:
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VitatVitat
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6 years ago
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Cyco Author
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6 years ago
You make an excellent tutor!
ofsuahasiufhoas
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Thank you, thank you, thank you!
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Helped a lot
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