repeated appearance of the ame symbol in a sequence is called a run. For example the sequence Intains Tour ins: 0, 111, 00, and 1; the sequence 00010 contains three runs: 000, 1, and 0; and the sequence 111 contains a single run -- the sequence itself. Find the expected number of runs in the random sequence X₁ X₂ where X₁ and X₂ are independent B2/3 (Bernoulli with parameter 2/3) random variables. For example, if X₁ = 1 and X₂ = 0, the sequence is 10 and has 2 runs. Find the expected number of runs in the random sequence X₁ X₂ X3 X4 X5, where all X₂'s are independent B2/3 random variables.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A repeated appearance of the same symbol in a sequence is called a "run". For example the sequence 0111001 contains four runs: 0, 111, 00,
and 1; the sequence 00010 contains three runs: 000, 1, and 0; and the sequence 111 contains a single run -- the sequence itself.
Find the expected number of runs in the random sequence X,X2 where X1 and X2 are independent B2/3 (Bernoulli with parameter 2/3)
random variables. For example, if X1 = 1 and X2
= 0, the sequence is 10 and has 2 runs.
Find the expected number of runs in the random sequence X1X2X3X4X5, where all X;'s are independent B2/3 random variables.
Transcribed Image Text:A repeated appearance of the same symbol in a sequence is called a "run". For example the sequence 0111001 contains four runs: 0, 111, 00, and 1; the sequence 00010 contains three runs: 000, 1, and 0; and the sequence 111 contains a single run -- the sequence itself. Find the expected number of runs in the random sequence X,X2 where X1 and X2 are independent B2/3 (Bernoulli with parameter 2/3) random variables. For example, if X1 = 1 and X2 = 0, the sequence is 10 and has 2 runs. Find the expected number of runs in the random sequence X1X2X3X4X5, where all X;'s are independent B2/3 random variables.
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