Can the following table be a probability distribution?P(x)10.139420.130230.347240.17450.2087noyes

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Answered: Can the following table be a…

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. 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
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
Let x be the number of courses for which randomly selected student at a university is registered. The probability distribution of x appears in the following table. ( all students must be enrolled in between 1 and 7 classes ) x. 1 2 3 4 5 6 7 P (x) ( 0.02 ) ( 0.04 ) (0.09 ) (0.24) ( 0.39 ) ( 0.17 ) ( .05 ) a. Find mean (x) ( round to two decimal places ) B. Find standard deviation of x ( round to two decimal places ) c. What is the probability that x is within 1 standard deviation of the mean? In other words solve: p ( mean of x - standard deviation of x < x < mean of x + standard deviation of x )=
Which of the following is a legitimate probability distribution? (d) No. Prob 0.10 (e) No. Prob. (a) No. Prob. 1/4 (b) No. Prob. (c) No. Prob. 0.1 1. 1/4 2. 2. 0.2 2. 0.11 2. 3. 3. 3. 3. 0.25 3. -1 3 1/4 1/4 0.05 0.26 4. 4 4. 4. 0.3 4 4 1/4 04 O a Oc
Complete the following probability distribution table: X -13 11 28 45 66 80 P(X) 0.13 0.12 0.18 0.15 0.22
Calculate the probability of 3 or 4 based on the following probability distribution. 1 4 p(x) 0.2 0.1 0.3 0.8 O0.6 O 0.7 er
what probability value would be needed to complete the following probability distribution? X -2 -1 0 1 2 P(X) 0.13 0.14 0.16 0.29
Suppose that a college determines the following distribution for X = number of courses taken by a full-time student this semester: Value of X 3 Probability 0.07 4 5 6 0.25 0.28 The probability for X = 4 is missing. What is it? 0.07 0.25 0.40 0.50
A fitness center bought a new exercisemachine called the Mountain Climber. Theydecided to keep track of how many people used themachine over a 3-hour period. Find the mean, variance,and standard deviation for the probability distribution.Here X is the number of people who usedthe machine. X 0 1 2 3 4 P(X) 0.1 0.2 0.4 0.2 0.1

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Can the following table be a probability distribution? P(x) 1 0.1394 2 0.1302 3 0.3472 4 0.1745 0.2087 no yes