The number of false alarms a building fire alarm system registers has a Poisson distribution with a mean of 6 false alarms per year. The variance of the number of false alarms is what?© BrainMass Inc. brainmass.com March 4, 2021, 7:39 pm ad1c9bdddf
For a Poisson distribution mean = Variance
Thus Variance= Mean = 6
Please see attached file.
The solution gives calculation of variance of Poisson random variable. The number of false alarms variance is examined.