Statistika - bpa.edu.rs Title: Statistika.pdf Author: neman Created Date: 4/15/2020 10:27:33 PM
5
149 10. 10.1. ( ) , . , . . ( ) X b b Y 1 0 , ( ) Y . : 2 2 2 2 1 2 2 X NX R b Y NY ( ) , X . 1 0 2 R 80 , 0 2 R Y X , 1 b 0 1 b R 0 1 b R -
Transcript of Statistika - bpa.edu.rs Title: Statistika.pdf Author: neman Created Date: 4/15/2020 10:27:33 PM
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149
10.
10.1.
( ) , .
, .
. (
) XbbY 10 , ( )
Y .
:
2 22 2
1 2 2
X NXR b
Y NY
( ) , X .
10 2R
80,02R YX
,1b
01b R 01b R-
-
150
-
X Y
X Y
X Y
222
2 YYNXXN
YXXYNR
-
151
10.2.
, , ,
, . .
, , . ,
, , , , , , .
, , ,
, , .
, , , ,
.
, , , .
Y
2210 XbXbbY
2
222
,
21
212121
21 1
2
xx
xxyxyxyxyxxxy R
RRRRRR
1X , 2X Y .
2R
Y
80,0221xxy
R
Y 1X 2XY
-
152
, .
:
2
2211, 21
y
yyxxy d
ddbddbR
( )ES
( ) :yS
2
2
, 21y
Exxy S
SR 10
21 ,xxyR
21xyxR
12 xyxR .
21xyxR
Y
1X 2X .
22
212
2121
2111 xxyx
xxyxyxxyx
RR
RRRR
22
211
2112
1211 xxyx
xxyxyxxyx
RR
RRRR
-
153
10.3.
, .
. , . ,
, ( ):
1
61
21
2
NN
dr
n
ii
S
id -
X Y N
1
12
222
1
2
1
2
NNm
SSn
i
n
iii
m iS i -
10.4.
yR
2
2
1y
Ey S
SR ES
