On average 83.1% of welds performed by a particular welder are defective. if, in one day, the welder creates three welds. what is the probability all of the samples are defective?

Let p be 0.831 denote the percentage of defective welds and q be 0.169 denote the percentage of non-defective welds.

Using the binomial distribution, we want all three to be defective.

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