Find the probability a unit has less than three components

Reference no: EM13140450

A production unit is made up of 20 indentical components and each component has a probability of 0.25 being defective. what is the average number of defective components in a unit? further what is the probability in a unit(i)less then 3 components are defective? (ii)exactly 3 components are defective?

Reference no: EM13140450

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