A bin of 5 transistors is known to contain 2 that are defective. The transistors are to be tested, one at a time, until the defective ones are identified. Denote by X the number of tests made until the first defect is identified and by Y the number of additional tests until the second defect is identified. (a) Depict the points and corresponding probabilities on a graph similar to file attached below. (b) Give the marginal pmfs in the “margins.”

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