↳. Independent trials, each resulting in a success with probability p, are per- formed until k consecutive successful trials have occurred. Let X be the total number of successes in these trial, and let P₁ = P(X = n). (a) Find Pk. (b) Derive a recursive equation for the Pñ, n ≥ k, by imagining that the trials continue forever and conditioning on the time of the first failure. Verify your answer in part (a) by solving the recursion for Pk. (d) When p= .6, k = 3, find Pg. (c)

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54. Independent trials, each resulting in a success with probability p, are per-
formed until k consecutive successful trials have occurred. Let X be the total
number of successes in these trial, and let Pñ = P(X = n).
n
(a) Find Pk.
(b) Derive a recursive equation for the PÅ, n ≥k, by imagining that the trials
continue forever and conditioning on the time of the first failure.
(c) Verify your answer in part (a) by solving the recursion for Pk.
(d) When p= .6, k = 3, find Pg.
Transcribed Image Text:54. Independent trials, each resulting in a success with probability p, are per- formed until k consecutive successful trials have occurred. Let X be the total number of successes in these trial, and let Pñ = P(X = n). n (a) Find Pk. (b) Derive a recursive equation for the PÅ, n ≥k, by imagining that the trials continue forever and conditioning on the time of the first failure. (c) Verify your answer in part (a) by solving the recursion for Pk. (d) When p= .6, k = 3, find Pg.
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