On average, Noah has noticed that 13 trains pass by his house daily (24 hours) on the nearby train tracks. What is the probability that at most 4 trains will pass his house in a 8-hour time period? (Round your answer to three decimal places.)

Q: A physics class has 50   students. Of​ these, 18   students are physics majors and 17   students…

A: If there are n mutually exclusive, exhaustive and equally likely outcomes of a random experiment and…

Q: The probability that it will rain in a city is 0.1. Find the probability that it will rain on two…

A: Given that the probability that it will rain in a city is 0.1. Two consecutive days are independent…

Q: Kayla buys a bag of cookies that contains 8 chocolate chip cookies, 8 peanut butter cookies, 7 sugar…

A: Kayla buys a bag of cookies that contains 8 chocolate chip cookies, 8 peanut butter cookies, 7 sugar…

Q: Patients arrive at a hospital and emergency department at random at a rate of 6 per hour. Find the…

A: From the given information, Patients arrive at a hospital and emergency department at random at a…

Q: The probability of a grand piano selling for more than $58,600 is 0.2727. As these pianos sell…

A: The probability that a grand piano is sold for more than While selling these pianos, the probability…

Q: A woman plans to have two children. The probability that each child is a boy is 0.525, and the birth…

A: Given,P(a baby boy)=0.525P(a baby girl)=1-0.525=0.475

Q: The probability that A hits a target is 1/5 and the probability that B hits it is 1/7. What is the…

A: Probability that A hits a target = 1/5 Probability that B hits a target is 1/7 If two event A and B…

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.5. Find the…

A:

Q: A history professor decides to give a 12-question true-false quiz. She wants to choose the passing…

A: It is given that sample size (n) is 12.The number of options for a true-false question is 2.…

Q: Based on Julie's Semester 1 Mathematics 1 Quiz scores, the probability that Julie obtains a perfect…

A: Given data P(perfect score) =p = 0.7first success on xth trial ;  geometric distribution P(x=X) =…

Q: The probability of a number cube landing on 5 is 1/6.  If a number cube is tossed 72  times, how…

A: Given that: n=the number of trials=72 p=probability of landing on 5= 1/6   Each toss is independent…

Q: A basketball player has a 0.654 probability of making a free throw. If the player shoots 13 free…

A:

Q: Find the probability that z is greater than -1.72

A: Given: Z is standard normal r.v. i.e. Z~N(0,1)

Q: Suppose that it rains in Spain an average of once every 11 days, and when it does, hurricanes have a…

A:

Q: A baseball player has a batting average of 0.4. What is the probability that he has exactly 4 hits…

A: Givenp=0.4n=7Let "x" be the player hits the ballx~Binomial(n=7,p=0.4)P(X=x)=(nx)×px×(1-p)n-x      ;…