10) A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probabilitydistribution is shown below. Find the probability for the value of x = 5.3 5 8 10p(x) 0.10 0.20 ??? 0.30 0.10A) 0.3B) 0.2C) 0.7D) 0.1

Before calculating the probability corresponding to x=5, the conditions of probability are stated…

Answered: 10) A discrete random variable x can…

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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V. Let X be a random variable and having following distribution, check whether it is a probability distribution P(x) 1 3/10 2 4/10 3 4/10 -1/10
Suppose that the random variable , shown below, represents the number times. P(z) 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. 6 I P(x) 0 0.3657 1 0.3282 2 0.1731 3 0.0563 4 0.046 5 0.0307 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) = b) What is the probability that a randomly selected person has received four tickets in a three-year period? P(x = 4) = 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 two or less tickets in a three- year period? P(x2) G e 口 S
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Suppose that the joint probability for random variables X and Y defined by 29 28 3. 28 28 The mean of the random variable Y. HY.is 39 28 27 28 41 28
The random variable X can take on the values 2, 4 and 6, and the random variable Y can take onthe values 2, 6 and 10. Their joint probability distribution is given by the following table:Y2 6 10X2 0.10 0.05 0.104 0.10 0.15 0.256 0.10 0.10 0.05a. Describe in words and notation the event that has probability 0.25 in the table.b. Calculate the marginal distribution of X.c. Calculate ?ሺ? ൒ 4ሻ.d. Calculate the population mean of X.e. Calculate the conditional distribution of Y given X=2.f. Calculate E(Y|X=2).
1. A random variable x has the probability distribution as follows: 1. 2 3. 4 P(x) 1/15 k/15 k/5 4/15 k/15 a. Find k. b. Construct a probability histogram to descibe P(x).
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Suppose that the random variable , 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 0 P(x) 0.2951 0.2587 1 2 0.1924 0.1604 P(x > 0) 0.7049 = 3 4 a) What is the probability that a randomly selected person has received five tickets in a three-year period? P(x = 5) = 0.0442 b) What is the probability that a randomly selected person has received one tickets in a three-year period? P(x = 1) 0.2587 P(x≤1)=1 5 6+ c) What is the probability that that a randomly selected person has received more than zero tickets in a three- year period? 0.0492 0.0442 0.0000 > Next Question d) What is the probability that that a randomly selected person has received one or less tickets in a three-year period? Enter an integer or decimal number [more..]
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) = _____________
Suppose a discrete random variable X takes only three values 0, 2 and 3. If P(0)=0.5, P(2)=0.2 and P(3)=D0.3 then P(X>1) is equal to: Select one: a. 0.3 b. 0.2 C. 0.5 d. 0
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32 - The random variable X, which shows the grades of the students in a class in the exam of the statistics course, has a normal distribution with a mean of 80 and a variance of 25. Which of the following is the lowest grade with a probability of 0.3015? a) 32.5 B) 55 NS) 82.5 D) 68 TO) 89

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10) A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probability distribution is shown below. Find the probability for the value of x = 5. 3 5 8 10 p(x) 0.10 0.20 ??? 0.30 0.10 A) 0.3 B) 0.2 C) 0.7 D) 0.1