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A computer manufacturer has determined that the number of defective chips produced daily follows the following probability distribution x p (x) 0 0.70 1 0.12

A computer manufacturer has determined that the number of defective chips produced daily follows the following probability distribution

x p (x) 0 0.70 1 0.12 2 0.08 3 0.06 4 0.04

a) Calculate the expected number of defective chips produced daily.

b) Calculate the standard deviation of the number of defective chips produced daily.

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