Find the mean of the Poisson random variable.
-The number of calls received by a car towing service in an hour has a Poisson distribution with parameter $\lambda = 1.33$. Let $X$ denote the number of calls received by the service in a randomly selected hour. Find the mean of X.
A)$0.665$
B) $1.33$
C) $1.77$
D) $1.153$

Question

Find the mean of the Poisson random variable.
-The number of calls received by a car towing service in an hour has a Poisson distribution with parameter $\lambda = 1.33$. Let $X$ denote the number of calls received by the service in a randomly selected hour. Find the mean of X.  
A)$0.665$
B) $1.33$
C) $1.77$
D) $1.153$

Quizplus · Accepted Answer

The mean of a Poisson random variable is equal to its parameter $\lambda$, which in this case is $1.33$.

Find the Mean of the Poisson Random Variable λ=1.33\lambda = 1.33λ=1.33

Find the Mean of the Poisson Random Variable $\lambda = 1.33$