Answered: 5 What is the variance of the number of…

Math

Statistics

5 What is the variance of the number of requests? a 1.7900 b 1.8411 c 1.9000 d 1.9600

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

You own a local company that has special equipment for moving pianos. Your company has enough equipment to handle three pianos in a day. The number of requests to move pianos is a random variable with following distribution. →

x	f(x)
0	0.30
1	0.38
2	0.15
3
4	0.05
5	0.03
6	0.01

5	What is the variance of the number of requests?
a	1.7900
b	1.8411
c	1.9000
d	1.9600

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