Proba.stat

7/24/2019 Proba.stat

1/7

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PROBABILIT!&STATISTIQUE

SECTION: B


2/7

Chapitre 1 : Notions de bases et vocabulaire statistique :

9:

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Chapitre2 : Reprsentation numrique des donnes

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3/7

Chapitre 1 : Notions de bases et vocabulaire statistique :

I. Dfinition :o 8< ?>G@ J@GAE>L D>C A;D9@EI>C 9GO =9L9=@JLEC@EFG>C A,G< >TBD> !"#$!#%#!&' ;G A,;BY>@C

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Exemple :

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?,2,0-324 5&,$-#-,-#@ A%E =>C T;A9DE@JC C;CGL9BD>C =,>C@ ] AEL> ;< ?>G@ =;LL>C?; G< ]=U9FG> T;A9DE@J H/;EACK $;TBL> A,> ] D9 I9LE9BD> J@9@\=EIED> @ ] D9 CJLE> C@9@EC@EFG> A>C I9D>GLC ?LEC> ?;GL 7b ?>LC;CK " P T9LEJK 6 P 6>GQK * P *EI;L=J: C;E@ D9 CJLE> C@9@EC@EFG> P" " 6 2 2 " 2 2 " 2 E=E / 7 .-

_: $;TBL>C A,> C@9@EC@EFG> P` _ b 7 7 ` ` _ c b _ _ 7 ` d E=E / 7 .1

O7e`K O_e_K[NO7ced


4/7

III. Effectif, Frquences et Tableaux Statistique :! 8< 9??>DD> >QQ>=@EQ A,G T;A9DE@JK D> A> Q;EC FG> =>@@> T;A9DE@J 9??9L9f@ A9

C@9@EC@EFG>K ;< /9D,>QQ>=@EQ A> D9 T;A9DE@JN

! +9 QLJFG> A,G T;A9DE@J >C@ D,>QQ>=@EQ AEIECJ ?9L D> A,EQQ>=@EQ =GTGDJ >@ HQE>;G :: D9 QLJFG> =GTGDJ> A> D9 T;A9DE@J aE P/Ee ?L;=>CCGC >@ AJAGE@ G SL9 ?9L@E> A> D,EK H?>L@>

A,E A> =D9CC>C / 7 D >@ D9 D;GL A>C =D9CC>C E> 7 D8

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SA> @>DD> C;L@E> FG> I,Q T U

Exemple :9ebKl7` CE 9ebKl7 >@ ;< ?L>


5/7

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Exercice :.< =;GL A,9G@;T;BED>C 9 A>T9 ?9L@ A> D>GLC ?LJQJL>C =;L D9 I;E@GL>K D>C LJCGD@9@C FG,ED ;B@E>=@EQ db `c `b _c _b

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6/7

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7/7

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