7. A regional telephone company operates three identical relay stations at different locations. During a one-year period, the number of malfunctions reported by each station and the causes are shown below. Suppose that a malfunction was reported and it was found to be caused by other human errors. What is the probability that it came from station C? Station A B C 2 1 4 Problems with electricity supplied Computer malfunction Malfunctioning electrical equipment Caused by other human errors 3 2 4 7 7

7. A regional telephone company operates three identical relay stations at different locations. During a one-year period, the number of malfunctions reported by each station and the causes are shown below. Suppose that a malfunction was reported and it was found to be caused by other human errors. What is the probability that it came from station C? Station A B C 2 1 4 Problems with electricity supplied Computer malfunction Malfunctioning electrical equipment Caused by other human errors 3 2 4 7 7

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

7. A regional telephone company operates three identical relay stations at different locations. During a one-year
period, the number of malfunctions reported by each station and the causes are shown below. Suppose that a
malfunction was reported and it was found to be caused by other human errors. What is the probability that it
came from station C?
Station A B C
Problems with electricity supplied
1
Computer malfunction
4
Malfunctioning electrical equipment
5
Caused by other human errors
7
222
1347-

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