Q20. If a number x is chosen at random from the numbers -2,-1,0,1,2. Then, theprobability that x²<2 is(a)(b)5(d)315

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Answered: Q20. If a number x is chosen at random…

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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Suppose an airline found that about 5% of the people making reservations on a flight from Miami to Denver do not show up for the flight. Suppose that the airline overbooks this flight by selling 247 ticket reservations for an airplane with only 243 seats. Let n = 247 represent the number of ticket reservations. Let r represent the number of people with reservations who show up for the flight. Which expression represents the probability that a seat will be available for everyone who shows up holding a reservation: Expression I : P(r ≥ 247) Expression II : P(r ≥ 243) Expression III : P(r ≤ 247) Expression IV : P(r ≤ 243) Expression V : P(r = 243)
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Wyatt buys a bag of cookies that contains 8 chocolate chip cookies, 4 peanut butter cookies, 8 sugar cookies and 6 oatmeal cookies. What is the probability that Wyatt reaches in the bag and randomly selects a chocolate chip cookie from the bag, eats it, then reaches back in the bag and randomly selects an oatmeal cookie? Give your answer as a fraction, or accurate to at least 4 decimal places.
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What is the probability that zz is greater than −0.25
Suppose an airline found that about 7% of the people making reservations on a flight from Miami to Denver do not show up for the flight. Suppose that the airline overbooks this flight by selling 226 ticket reservations for an airplane with only 219 seats. Let n = 226 represent the number of ticket reservations. Let r represent the number of people with reservations who show up for the flight. Which expression represents the probability that a seat will be available for everyone who shows up holding a reservation: Expression I : P(r ≥ 226) Expression II : P(r ≥ 219) Expression III : P(r ≤ 226) Expression IV : P(r ≤ 219) Expression V : P(r = 219) a. Expression II b. Expression III c. Expression I d. Expression V e. Expression IV
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Suppose that 17% of people own dogs. If you pick two people at random, what is the probability that they both own a dog?Give your answer as a decimal (to at least 3 places) or fractionIs it correct answer 0.029?

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Q20. If a number x is chosen at random from the numbers -2,-1,0,1,2. Then, the probability that x²<2 is (a) (b) 5 (d) 315