In a Certain Communications System, There Is an Average of 1

Multiple Choice

In a certain communications system, there is an average of 1 transmission error per 10 seconds.Assume that the distribution of transmission errors is Poisson.The probability of 1 error in a period of one-half minute is approximately ________

A) 0.1494
B) 0.3333
C) 0.3678
D) 0.1336
E) 0.03