Question: Consider the experiment where product items are being inspected for the presence of a particular defect until the first defective product item is found. Let

Consider the experiment where product items are being inspected for the presence of a particular defect until the first defective product item is found. Let X denote the total number of items inspected. Suppose a product item is defective with probability p, p>0, independently of other product items. Find σ2X in terms of p.

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