At a party, 2023 people put their hats in the centre of a room where the hats are mixed. Each person then randomly selects one. Let X be the number of people who select their own hats. 1. Which of the following statement on the expected value of X is true? (a)E[X] < 1 (b)E[X] = 1 (c)E[X] > 1 II. Which of the following statement on the variance of X is true? (a)Var(x) < 1 (b)Var(X) = 1 (c)Var(X) > 1
At a party, 2023 people put their hats in the centre of a room where the hats are mixed. Each person then randomly selects one. Let X be the number of people who select their own hats. 1. Which of the following statement on the expected value of X is true? (a)E[X] < 1 (b)E[X] = 1 (c)E[X] > 1 II. Which of the following statement on the variance of X is true? (a)Var(x) < 1 (b)Var(X) = 1 (c)Var(X) > 1
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
![At a party, 2023 people put their hats in the centre of a room where the hats are
mixed. Each person then randomly selects one. Let X be the number of people who
select their own hats.
1. Which of the following statement on the expected value of X is true?
(a)E[X] < 1
(b)E[X] = 1
(c)E[X] > 1
II. Which of the following statement on the variance of X is true?
(a)Var(x) < 1
(b)Var(X) = 1
(c)Var(x) > 1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe3aa9238-d0bd-456b-acda-df0db22aaea2%2F1d52481b-488e-4875-9207-982fe53c2c43%2Ftv10ywq_processed.png&w=3840&q=75)
Transcribed Image Text:At a party, 2023 people put their hats in the centre of a room where the hats are
mixed. Each person then randomly selects one. Let X be the number of people who
select their own hats.
1. Which of the following statement on the expected value of X is true?
(a)E[X] < 1
(b)E[X] = 1
(c)E[X] > 1
II. Which of the following statement on the variance of X is true?
(a)Var(x) < 1
(b)Var(X) = 1
(c)Var(x) > 1
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