Suppose you go through 4 traffic lights on your daily commute. each light is equally likely to be green or red. assuming each light operates independently of the others. what is the pmf, mean, and variance of the number of red lights that you encounter daily?

answer: what assumptions have you made in answering the two above questions? (b) the probability that at most 4 will fail is 0 + 1 + 2 + 3 + 4 lights on her way to work, and each light is equally likely to be green or red, independent of the others. a. what is the pmf, the mean, and the variance of the number of red lights that.

answer: 88

step-by-step explanation: