QUESTION 12A random variable X has the following distribution:X-101P(X=x)3.5.2Let Y=X². Find the expected value of random variable Y..38.60.54

The objective of this question is to find the expected value of a new random variable Y, where Y is…

Answered: QUESTION 12 A random variable X has the…

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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Question 4: Use the probability distribution for the random variable x to answer the questions: 3 4 6 p(x) 0.08 0.26 0.29 a) Find p(3). b) Find the unknown probability for the last outcome. c) What is the expected value for this probability distribution? d) What are the variance and standard deviation for this probability distribution?
There are two independent random variables X and Y. X has mean 4 and standard deviation , and Y also has mean 4 and standard deviation . A random variable Z is the sum of X and Y. That is, Z = X + Y. Calculate the mean of Z.
QUESTION 8 Assume that Z is a standard normal random variable, find the following probabilities: 3.1. P(1.80 sZ s2.50) 3.2. P(Zs3.60) 3.3. P(Zs2) 3.4. P(Z21) 3.5. P(Zs-1.80).
question will save this response. Quèstion 6 Suppose that X is a negative binomial random variable withp= 0.3 and r= 5. Determine P(X= 17)? 0.06121 None 0.93879 0.000997 A Moving to another question will save this response. 直 29°C Wlt usis
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Question 2 A) Below is a partially complete probability distribution for a discrete random variable: X 1 2 3.5 6 Р(X) 0.2 Find the expected value of X. Do not round your final answer (it should include 3 decimal places). 0.15 0.15 ? B) Let X be the number of junk emails received in a day. A website developer determines the probability distribution of X is: X 1 2 3 4 5 6 Р(X) 0.01 What is the probability that the number of junk emails received in a day is at most 2? 0.09 0.12 0.24 0.20 0.17 0.17 Enter your answer as a decimal. C) Let X be the number of junk emails received in a day. A website developer determines the probability distribution of X is: X 1 2 3 4 5 6 РX) 0.01 What is the probability that the number of junk emails received in a day is at least 1? 0.09 0.12 0.24 0.20 0.17 0.17 Enter your answer as a decimal.
8.5.49-BE Question Help The annual premium for a $10,000 insurance policy against the theft of a painting is $250. If the (empirical) probability that the painting will be stolen during the year is 0.02, what is your expected return from the insurance company if you take out this insurance? Let X be the random variable for the amount of money received from the insurance company in the given year. E(X) dollars
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QUESTION 12 A random variable X has the following distribution: X -1 0 1 P(X=x) 3 .5 .2 Let Y=X². Find the expected value of random variable Y. .38 .6 0.5 4