SOLUTION: Long term average number of computer failure in your organization is 2 per week. What is the probability of at most one failure in the week?

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Question 1142790: Long term average number of computer failure in your organization is 2 per week.
What is the probability of at most one failure in the week?

Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
.

Having nothing else given, an appropriate hypothesis is to assume that we have random variable 


    X = "the number of failures per week" 


with integer random values which is uniformly distributed with the minimum value of 0 and the maximum value of 4.



Then the mean average  is exactly 2  (= %280+%2B+1+%2B+2+%2B+3+%2B+4%29%2F5 ), as the problem states, 

and  the condition becomes "consistent with the given part" and "self-closed".



Then the answer to the problem's question is   P(X <= 1) = 2%2F5  (X may have values of 0 or 1  of 5 possible integer values from 0 to 4).  

Solved.


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