The time it takes a repairman to repair a computer is governed by an exponential distribution with μ = 1 hour and σ = 1 hour. Over the course of a month, the repairman repairs 48 computers. What is the probability that their average repair time exceeds 81 minutes? Assume the distribution is normal.

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< < < emily> > >

y=20x

: )

hope this

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75