Suppose that the random variable a, shown below, represents the number times . P(r) represents theprobability of a randomly selected person having received that number of speeding tickets during thatperiod. Use the probability distribution table shown below to answer the following questions. 17P(z)0.268610.26420.263330.136340.048550.01936+0.0000a) What is the probability that a randomly selected person has received three tickets in a three-yearperiod?P(x = 3) =b) What is the probability that a randomly selected person has received one tickets in a three-year period?P(x = 1) =|c) What is the probability that that a randomly selected person has received more than three tickets in athree-year period?P(x > 3) =d) What is the probability that that a randomly selected person has received zero or less tickets in a three-year period?P(x < 0) =

From the provided information, x P (x) 0 0.2686 1 0.264 2 0.2633 3…

Answered: Suppose that the random variable z,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. The random variable X is defined as the number of times a graduating senior changed majors. It is shown below: 1 3 4 8 P(X = x) |0.252 0.286 0.13 0.188 0.082 0.038 0.02 0.003 0.001 a. What is the probability that a randomly selected student changed his or her major at least once? b. What is the probability that a randomly selected student changed his or her major at most twice? c. Given that a randomly selected person did change majors, what is the probability that he or she changed majors more than three times? (Round your answer to three decimal places.)
Answer the following: 1. The number of patients seen in the ER in any given hour is a random variable represented by x. The probability distribution for x is: 10 11 12 13 14 P(x) .4 .2 .2 .1 .1 Find the probability that in a given hour: a. exactly 10 patients arrive b. exactly 15 patients arrive 2. Six balls numbered 1, 2, 3, 5, 8, and 13 are placed in a box. A ball is selected at random, and its number is recorded and then it is replaced. Find the expected value of the numbers that will occur.
Given the following probability distribution for the number of semesters of Math a (non-Math major) college student will take as they earn their degree: x:number of semesters of Math 1 2 3 4 P(x) 0.25 0.45 0.20 0.10 What is the probability that a randomly selected (non-Math major) college student will have taken exactly 3 semesters of Math? Show how you calculated your result here (type in what you typed on your calculator or computer, etc) Calculation: __________ Now type in your final simplified or rounded answer, if necessary round your answer to four decimal places. P(exactly 3 semesters of Math) = _____________
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Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. Use the table below to answer the following questions, you may round your answers to three decimal places, if necessary. aP(x) 0.192 1 0.203 0.281 3 0.189 4 0.077 0.035 0.019 0.003 0.001 a. What is the probability that a randomly selected student changed their major at least once? Preview b. What is the probability that a randomly selected student changed their major fewer than two times? Preview c. What is the probability that they changed majors more than three times? Preview 479
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The table below shows the probability distribution of a random variable X. xr 1 2 4 5. P(X = x) 0.2 0.2 0.3 2p Find the value of p. О 0.10 O 0.15 O 0.51 O 0.20
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Suppose that the random variable z, shown below, represents the number times . P(x) represents the probability of a randomly selected person having received that number of speeding tickets during that period. Use the probability distribution table shown below to answer the following questions. 56 I P(x) 0 0.3028 1 0.2745 2 0.2629 3 0.0889 4 0.0406 0.0303 6+ 0.0000 a) What is the probability that a randomly selected person has received one tickets in a three-year period? P(x = 1) = 0.2745 b) What is the probability that a randomly selected person has received five tickets in a three-year period? P(r = 5) = 0.0303 c) What is the probability that that a randomly selected person has received more than two tickets in a three-year period? P(x > 2) 0.1598 d) What is the probability that that a randomly selected person has received five or less tickets in a three- year period? P(x < 5) = 1
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