Answered: The probability distribution of 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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The probability distribution of the ratings established by the employees on the relationship they have with their supervisors ranges from 1 (poor) to 5 (excellent).

Qualification of employee’s relationship with supervisor (x)	Supervisor A f (x)	Supervisor B f (x)
1	0.05	0.04
2	0.09	0.10
3	0.03	0.12
4	0.42	0.46
5	0.41	0.28

a) What is the expected value (mean) of the securities offered to the rating of supervisor A?

b) What is the expected value (mean) of the securities offered to supervisor B's rating?

c) Calculate the variance of the values offered to the rating of supervisor A.

d) Calculate the standard deviation of the values offered to the rating of supervisor B.

e) Compare their satisfaction with supervisor A with that of supervisor B.

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