Which of the following is a characteristic of every binomial distribution?
A. The outcome of a trial depends on the number of trials.
B. Each outcome is mutually exclusive.
C. The probability of success increases from trial to trial.
D. Each outcome is dependent on the previous outcome.
The local police department must write, on average, 5 tickets a day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with a mean of 5.5 tickets per day. Interpret the value of the mean.