12. A small airline company has a fleet of 30 planes. The probability that a particular plane willbe out of service on any given day is 24%.a) What is the probability that exactly 10 planes will be out of service at any given time?!b) What is the probability that at least two planes will be out of service at any given time? [*

Solution-:Given: n=30,p=0.24We want to find,(a) P(exactly 10 planes will be out of service at any…

Answered: 12. A small airline company has a fleet…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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4. Consider a family with three children. Given that at least one of the children is a boy, what is the probability that the three children children are boys? (assume that the probability of having a boy is 0.5, and that the gender of the second child is independent of the gender of the first child and of the gender of the third child)
If 8 different customers A, B, C, D, E, F, G, and H arrive for service at random order, what is the probability that customers E, C, and F arrive after other customers?
A certain state has the highest high school graduation rate of all states at 85%. a. In a random sample of 20 high school students from the state, what is the probability that 16 will graduate? b. In a random sample of 20 high school students from the state, what is the probability than 15 or fewer will graduate? c. What is the probability that at least 16 high school students in our sample of 20 will graduate? Please be very specific every question I have asked has been incorrect so far.
19. In a certain college, 33% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that exactly 2 belong to an ethnic minority? 20. Use the information in the previous question to find the probability that at most 2 students belong to a minority.
1. A city has 9 coffee shops: 3 Starbuck's, 2 Caribou Coffees, and 4 Crazy Mocho Coffees. If a person selects one shop at random to buy a cup of coffee, find the probability that it is either a Starbuck's or Crazy Mocho Coffees.
American Airlines' flights from Denver to Atlanta are on time 90% of the time. Suppose thirteen flights are randomly selected, and the number on-time flights is recorded. 1. The probability that at least three flights are on time is? 2. The probability that at most twelve flights are on time is? 3. The probability that exactly two flights are on time is?
21. A company in New Jersey is hiring 8 people for a position. Of the applicants, 10 are from New Jersey, 8 are from New York, and 7 are from Pennsylvania. What is the probability that of the 8 people hired, exactly 2 are from New Jersey, and what is the probability at least two are from New Jersey? Round off to 3 decimal places. _________ and ________
If 7 different customers A, B, C, D, E, F, and G arrive for service at random order, what is the probability that customers B and E arrive before other customers?
According to a particular website 11% of a group of people are left handed. If we select 4 people at random, find the probability that the number who are left handed is at most 1. What probability should be found? VA. P(0 are left handed) + P(1 is left handed) O B. P(1 is left handed) O C. P(4 are left handed) O D. P(2 are left handed) The probability that at most 1 is left handed is (Round to four decimal places as needed.)
2. A family of two parents and three children lines up in a row for a photograph. If the three children are randomly placed in a row in front of their parents, what is the probability that they will be arranged in ascending or descending order of age? and from sight technicians four
Delta Airlines' flights from Boston to Dallas are on time 60 % of the time. Suppose 13 flights are randomly selected, and the number on-time flights is recorded.1.The probability that at least 9 flights are on time is =2.The probability that at most 8 flights are on time is =3.The probability that exactly 12 flights are on time is =

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