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Le Cam two-point lemma
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Mathematics
Area of mathematics
Probability and statistics
Statistical inference
Statistical decision theory
2026-09-24
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Le Cam'
s
two-point lemma lower-bounds
minimax
risk
by reducing estimation to testing two separated
parameter
values. Under squared loss,
one form
is
in
f
θ
max
j
=
0
,
1
E
j
(
θ
−
θ
j
)
2
≥
8
(
θ
1
−
θ
0
)
2
(
1
−
TV
(
P
0
,
P
1
)
)
.
(1)
Ancestors
(6)
Statistical decision theory
Statistical inference
Probability and statistics
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2025
/
iii
/
Paper 210
/
4
/
Solution
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