# Question

In Exercise 3-70, recall that a particularly long traffic light on your morning commute is green 20% of the time that you approach it. Assume that each morning represents an independent trial.

(a) What is the probability that the first morning that the light is green is the fourth morning that you approach it?

(b) What is the probability that the light is not green for 10 consecutive mornings?

(a) What is the probability that the first morning that the light is green is the fourth morning that you approach it?

(b) What is the probability that the light is not green for 10 consecutive mornings?

## Answer to relevant Questions

A trading company has eight computers that it uses to trade on the New York Stock Exchange (NYSE). The probability of a computer failing in a day is 0.005, and the computers fail independently. Computers are repaired in the ...The probability is 0.6 that a calibration of a transducer in an electronic instrument conforms to specifications for the measurement system. Assume the calibration attempts are independent. What is the probability that at ...Determine the cumulative distribution function for X in Exercise 3-88.Suppose X has a Poisson distribution with a mean 4. Determine the following probabilities: (a) P(X = 0) (b) P(X < 2) (c) P(X = 4) (d) P(X = 8)The number of failures of a testing instrument from contamination particles on the product is a Poisson random variable with a mean of 0.02 failure per hour. (a) What is the probability that the instrument does not fail in ...Post your question

0