Choose from the given answers:Give the mean of the following probability distribution?P(x)0.200.101340.350.050.30B) 1.46A) 1.20C) 3.15 D) 2.13

The mean of the given probability distribution is 3.15

Answered: | Give the mean of the following…

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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A lecturer knows that the probability distribution for X = number of students who come to his office on Monday is as follows: X 0 P(X=x) 0.20 1 0.25 A) 0.40 B) 0.50 C) 0.80 D) 0.90 2 0.30 3 0.15 4 0.10 What is the probability that at least 2 students come to his office on Monday?
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3. The number of loaves of rye bread left on the shelf of a local bakery at closing (denoted by the rv X) varies from day to day. Past records show that the cdf of X is as shown in the following table. 1 2 P(X < x) 0.20 0.45 0.65 0.80 0.90 0.98 1 4 5 6 (a) Determine the pmf of X. (b) Find the probability that there will be at least 3 loaves left over at the end of any given day. (c) Find the mean number of loaves of rye left on the shelf at closing. (d) Find the standard deviation of X.
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Suppose that the random variable x, 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. 43 x P(x) = 0 1 2 3 > Next Question 4 5 6+ 0.2951 0.2587 0.1924 0.1604 a) What is the probability that a randomly selected person has received five tickets in a three-year period? P(x = 5) 0.0492 0.0442 0.0000 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 zero tickets in a three- year period? P(x > 0) d) What is the probability that that a randomly selected person has received one or less tickets in a three-year period? P(x ≤ 1) =
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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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Find the mean of the following probability distribution? P(x) 0.1605 1 0.2848 2 0.0206 3 0.2536 4 0.2805 Use the round-off rule for measures of center and variation, mean = which is one place more than the x-values.

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| Give the mean of the following probability distribution? P(x) 0.20 0.10 0.35 0.05 0.30 A) 1.20 B) 1.46 1 5 C) 3.15 D) 2.13 345n