Question 8.42

11. Probability is a measure of how likely an event is to occur. Match one of the probabilities that follow with each statement about an event. (The probability is usually a much more exact measure of likelihood than is the verbal statement.)

  1. This event is impossible. It can never occur.
  2. This event is certain. It will occur on every trial of the random phenomenon.
  3. This event is very unlikely, but it will occur once in a while in a long sequence of trials.
  4. This event will occur somewhat more often than not.

11.

(a) Probability 0

(b) Probability 1

(c) Probability 0.01, once per 100 trials on average in the long run

(d) Probability 0.6