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Author Question: The following table shows part of the probability distribution for a random variable ... (Read 56 times)

unreallynx

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on: Mar 25, 2023

Question 1

The following probability distribution represents the number of grievances filed per month with the MNM. Corporation.

x

f(x)

0

0.04

1

0.36

2

0.50

3

0.08

4

0.02


a.

Determine the expected value of the number of grievances in a month.

b.

Determine the variance.

c.

Compute the standard deviation.



Question 2

The following table shows part of the probability distribution for a random variable x.

 

 

x

f(x)

0

0.2

1

?

2

0.15

3

?

4

0.15


 

a.

The mean of the above distribution is known to be 1.8 (i.e., E(x) = 1.8). Determine f(1) and f(3).

b.

Compute the variance and the standard deviation for the above probability distribution.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by unreallynx on Mar 25, 2023

Tussalpain

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Reply #1 on: Mar 25, 2023
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unreallynx

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Reply 2 on: Mar 25, 2023
Thanks for the timely response, appreciate it

CAPTAINAMERICA

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Reply 3 on: Yesterday
Wow, this really help

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