Consider a sequence of independent Bernoulli trials,each
Chapter 6, Problem 6.7(choose chapter or problem)
Consider a sequence of independent Bernoulli trials,each of which is a success with probability p.Let X1 be the number of failures preceding thefirst success, and let X2 be the number of failuresbetween the first two successes. Find the joint massfunction of X1 and X2.
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