Consider an unfair coin with probability p of heads. n has been tossed (a deterministic number) n times. Denote by X ber of heads among the n tosses and by Y the number of tails. Show and Y are dependent. n has been tossed (a random number) N times where N ~ Poisson(A) by X the number of heads among the N tosses and by Y the number

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.7: Applications
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Exercise 2.7. Consider an unfair coin with probability p of heads.
(a) The coin has been tossed (a deterministic number) n times. Denote by X
the number of heads among the n tosses and by Y the number of tails. Show
that X and Y are dependent.
Poisson(A).
(b) The coin has been tossed (a random number) N times where N -
Denote by X the number of heads among the N tosses and by Y the number
of tails. Show that X and Y are independent.
Transcribed Image Text:Exercise 2.7. Consider an unfair coin with probability p of heads. (a) The coin has been tossed (a deterministic number) n times. Denote by X the number of heads among the n tosses and by Y the number of tails. Show that X and Y are dependent. Poisson(A). (b) The coin has been tossed (a random number) N times where N - Denote by X the number of heads among the N tosses and by Y the number of tails. Show that X and Y are independent.
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