The Blacktop Speedway is a supplier of automotive parts. Included in stock are 10 speedometers that are correctly calibrated and two that are not. Three speedometers are randomly selected without replacement. Let the random variable xx represent the number that are not correctly calibrated. (Note: Please report probabilities accurate

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The Blacktop Speedway is a supplier of automotive parts. Included in stock are 10 speedometers that are correctly calibrated and two that are not. Three speedometers are randomly selected without replacement. Let the random variable xx represent the number that are not correctly calibrated.

(Note: Please report probabilities accurate to 4 decimal places.)

x P(x)
0  
1  
2  
3  

Find the mean of this probability distribution. (Note: Appropriate rounding rules apply.)

Mean = 

 

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