During the Summer Season, the Average Number of Lightning Strikes

Multiple Choice

During the summer season, the average number of lightning strikes per week in the Royal Canyon area is 3.6.Assume that all the Poisson conditions are met.Let x represent values for the random variable "number of lightning strikes in a week." What is the standard deviation of x?

A) 1.897
B) 2.354
C) 4.162
D) 1.212
E) 1.318