The Table below shows Voters chosen at random between African - American and African - American Democrats.

	Republican	Democrat	Total
African - American	4	12	16
White/Other	44	40	84
Total	48	52	100

Using the above table find the probability that the voter is either African - American or Democrat.

QUESTION 1b).

It has been discovered that averagely, three vehicles arrive per hour, on the average the system service 15 minutes per vehicle. You are require to calculate.

i.) Traffic Intensity

ii.) Idle time in the system

iii.) Average number of cars in the system

iv.) Calculate the average time in the system

v.) Average number of car in the Queue