Teoriâ veroâtnostej i ee primeneniâ, Tome 24 (1979) no. 4, pp. 858-865
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N. N. Amosova. On the probabilities of moderate deviations for sums of independent random variables. Teoriâ veroâtnostej i ee primeneniâ, Tome 24 (1979) no. 4, pp. 858-865. http://geodesic.mathdoc.fr/item/TVP_1979_24_4_a18/
@article{TVP_1979_24_4_a18,
author = {N. N. Amosova},
title = {On the probabilities of moderate deviations for sums of independent random variables},
journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
pages = {858--865},
year = {1979},
volume = {24},
number = {4},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TVP_1979_24_4_a18/}
}
TY - JOUR
AU - N. N. Amosova
TI - On the probabilities of moderate deviations for sums of independent random variables
JO - Teoriâ veroâtnostej i ee primeneniâ
PY - 1979
SP - 858
EP - 865
VL - 24
IS - 4
UR - http://geodesic.mathdoc.fr/item/TVP_1979_24_4_a18/
LA - ru
ID - TVP_1979_24_4_a18
ER -
%0 Journal Article
%A N. N. Amosova
%T On the probabilities of moderate deviations for sums of independent random variables
%J Teoriâ veroâtnostej i ee primeneniâ
%D 1979
%P 858-865
%V 24
%N 4
%U http://geodesic.mathdoc.fr/item/TVP_1979_24_4_a18/
%G ru
%F TVP_1979_24_4_a18
Let $X_1,X_2,\dots$ be a sequence of independent identically distributed random variables and $\sigma>0$. Put $$ F_n(x)=\mathbf P\biggl\{\sum_{i=1}^nX_i<x\biggr\},\qquad\Phi(x)=(2\pi)^{-1/2}\int_{-\infty}^x e^{-t^2/2}\,dt. $$ Necessary and sufficient conditions are found for the validity of the relation $$ 1-F_n(x\sigma\sqrt n)=(1-\Phi(x))(1+o(1)),\qquad 0\le x\le c\sqrt{\log n},\qquad n\to\infty. $$