Question: Find the marginal PMFp K (k) as a function ofk . For simplicity, provide the answer only for the case when k is an even

Find the marginal PMFp

K

(k)

as a function ofk

. For simplicity, provide the answeronly for the case whenk

is an even number. (The formula for whenk

is odd would be slightly different, and you do not need to provide it).

Hint:You may find the following helpful:

i=0

r

i

=1

1r

for0

.

Fork=2,4,6,...

:

p

K

(k)=

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