SOLUTION: a company ships computer components in boxes that contain 20 items. Assume that the probablity of a defective computer components is 0.2.Use the geometric variance to find the var

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Question 624886: a company ships computer components in boxes that contain 20 items. Assume that the probablity of a defective computer components is 0.2.Use the geometric variance to find the variance of defective parts.
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Variance = (standard deviation)² = s² = n·p·(1-p) = 20·(0.2)·(1-0.2) = 20·(0.2)·(0.8) = 3.2