The Average Number of Wind Turbines at the Vast Kindler

Multiple Choice

The average number of wind turbines at the vast Kindler Range Wind Farm that malfunction and need repair is 2.3 per day.Assume that all the Poisson conditions are met.Letting x represent values of the random variable "number of turbines that malfunction during any one day," what is the variance of x?

A) 2.3
B) 3.5
C) 2.9
D) 3.3
E) 4.7