the neighborhood clinkos has a single copy machine. the copier has been observed on average 16 customers per hour during peak periods when it is never idle.; the servie time of this copier is exponentially distributed. customers arrive at the copir according to a poisson process with a mean of 12 customers per hour. what is the coefficient of variation of the customer interarrival time

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.