Find the Standard Deviation of the Poisson Random Variable $\lambda$ = 1860 Let X Denote the Number of Calls Received by to Three

Multiple Choice

Find the standard deviation of the Poisson random variable. Round to three decimal places.
-The number of calls received by a car towing service in an hour has a Poisson distribution with parameter $\lambda$ = 1.860. Let X denote the number of calls received by the service in a randomly selected
Hour. Find the standard deviation of X.

A) 0.930
B) 1.860
C) 1.364
D) 3.460