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Past exam of the mathematics course of the University of Cambridge
/
2023
/
iii
/
Paper 218
/
2
/
a
/
Solution
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Past exam of the mathematics course of the University of Cambridge
2023
iii
Paper 218
2
a
2026-09-28
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A
process
(
X
t
)
t
∈
Z
is
weakly stationary
when it has finite
second
moments
,
a
time
-independent
mean
E
X
t
=
μ
, and an
autocovariance function
Cov
(
X
t
,
X
s
)
=
γ
(
t
−
s
)
(1)
that depends only on the lag.
Ancestors
(11)
a
2
Paper 218
iii
2023
Past exam of the mathematics course of the University of Cambridge
Mathematics course of the University of Cambridge
Course of the University of Cambridge
University of Cambridge
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