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March 28, 2015

March 28, 2015

Posted by **Mich Mich** on Friday, March 25, 2011 at 3:04pm.

a. what is the appropriate probability distribution for X? Explain how X saisfies the properties of the distribution.

b. compute the probability that 4 machines will break down.

c. compute the probability that at least 4 machines will break down.

d. what is the expected umber of machines that will break down in a day?

e. What is the variance of the number of machines that will break down in a day?

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