Select all correct answers for the Poisson probability distribution.

1) The variables in a Poisson trial are counted.

2) The Poisson distribution describes a situation where the probability of success does not remain the same from trial to trial.

3) An example of a Poisson trial is counting the number of misspelled words in a magazine article.

4) The Poisson distribution describes the number of events occurring in a unit of space or time.

5) The Poisson distribution is always positively skewed.

6) The Poisson distribution's mean=median=mode.

7) An example of the Poisson trial is selecting the members of a committee from one business.

8) The variables in a Poisson trial are measured.