STANDART SAPMA HESABI
|
X
|
U
|
f
|
f.U
|
(U-Ū)2
|
f.(U-Ū)2
|
|
23.5
|
-3
|
1
|
-3
|
11.8641972
|
11.8641972
|
|
24
|
-2
|
6
|
-12
|
5.9753084
|
35.8518504
|
|
24.5
|
-1
|
23
|
-23
|
2.0864196
|
47.9876508
|
|
25
|
0
|
48
|
0
|
0.1975308
|
9.4814784
|
|
25.5
|
1
|
39
|
39
|
0.3086420
|
12.037038
|
|
26
|
2
|
20
|
40
|
2.4197532
|
48.395064
|
|
26.5
|
3
|
5
|
15
|
6.5308644
|
32.654322
|
|
27
|
4
|
2
|
8
|
12.6419756
|
25.2839512
|
|
|
|
∑f=144
|
∑f.U=64
|
|
∑f(U-Ū)2=223.555552
|
A=25 ve C= 0.5 olarak seçelim
U=(X-A) / C
U1=( 23.5-25) / 0.5= -3
U2=(24-25) / 0.5= -2
U3=( 24.5-25) / 0.5= -1
U4=( 25-25) / 0.5= 0
U5=( 25.5-25) / 0.5= 1
U6=( 26-25) / 0.5= 2
U7=( 26.5-25) / 0.5= 3
U8=( 27-25) / 0.5= 4
Ū=∑f.U/∑f = 64 / 144= 0.4444444
σ U=(∑ f.(U-Ū)2/∑f)1/2 = (223.555552/144)1/2= 1.245981184
σ x=C. σ U= (0.5).(1.245981) = 0.622990592
