Solution Found!
Taking the train Refer to Exercise 72. (a) Find the probability that the train arrives
Chapter 6, Problem 80(choose chapter or problem)
Taking the train Refer to Exercise 72. (a) Find the probability that the train arrives late on exactly 2 days. Show your work. (b) Would you be surprised if the train arrived late on 2 or more days? Compute P(W 2) and use this result to support your answer.
Questions & Answers
QUESTION:
Taking the train Refer to Exercise 72. (a) Find the probability that the train arrives late on exactly 2 days. Show your work. (b) Would you be surprised if the train arrived late on 2 or more days? Compute P(W 2) and use this result to support your answer.
ANSWER:Step 1 of 3
The given claim that the 8:00 a.m. weekday train from Princeton to New York City has a 90% chance of arriving on time on a randomly selected day is true.
Let W be a random variable representing the number of days on which the train arrives late, follows the binomial distribution with parameters n and p.
Where,
x is the number of successes.
p is the probability of success and q is the probability of failure.