Epsilon Manufacturing Company Makes a Specialized Electronic Product Used in the Automotive

Multiple Choice

Epsilon Manufacturing Company makes a specialized electronic product used in the automotive industry.This product has 4 components,each of which could be defective.So the total number of defects of this product can be 0,1,2,3,or 4.The following table provides the probabilities of the number of defects: The standard deviation of the number of defects is _______.

A) .89
B) .90
C) .91
D) .92
E) .93