The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor.   x f(x) 1 0.104 2   3 0.312 4 0.240 5 0.098 6 0.017   8 The variance of the days to complete the project is ________. a 1.665         b 1.542         c 1.428         d 1.322

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The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor.

 

x f(x)
1 0.104
2  
3 0.312
4 0.240
5 0.098
6 0.017

 

8 The variance of the days to complete the project is ________.
a 1.665        
b 1.542        
c 1.428        
d 1.322        
Expert Solution
Step 1

Introduction:

The random variable of interest is X, with f (x) representing the probability mass function for the value X = x.

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