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in a tyre manufacturing  company, an industry statistician has declared that 2,5 % of the tyres manufactured are not in good condition. Now the production managers decides to select four newly manufactured tyres and tested them. assuming that the declaration is true. a. what is is the probality  that three of the selected are defefective b. find the expected value and the standard deviation of X.

in a tyre manufacturing  company, an industry statistician has declared that 2,5 % of the tyres manufactured are not in good condition. Now the production managers decides to select four newly manufactured tyres and tested them. assuming that the declaration is true. a. what is is the probality  that three of the selected are defefective b. find the expected value and the standard deviation of X.

MATLAB: An Introduction with Applications
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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in a tyre manufacturing  company, an industry statistician has declared that 2,5 % of the tyres manufactured are not in good condition. Now the production managers decides to select four newly manufactured tyres and tested them. assuming that the declaration is true.

a. what is is the probality  that three of the selected are defefective

b. find the expected value and the standard deviation of X.

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draw a tree diagram to represent these events. fill in the names of all events deppicted and their respective probalities.

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