Suppose you encounter one traffic light on your commute to work each day.You have determined that the probability that this light will be red is 1/3.Which of the following is not a correct interpretation of this probability?
A)The light will always be red one out of every three times that you encounter it.
B)In the long run, the light should be red about 33.33% of the time.
C)Each time you approach the light on your commute, the probability of it being red is 1/3.
D)All of the above are correct interpretations.

Question

Quizplus · Accepted Answer

The statement "The light will always be red one out of every three times that you encounter it" is not correct. The probability of the light being red is 1/3 each time you approach it, but it does not guarantee that it will be red exactly once every three times. It could be red two or three times in a row, or it could be green every time for several days. Probability does not predict exact outcomes, only the likelihood of different outcomes.

Suppose You Encounter One Traffic Light on Your Commute to Work