J a g ‘ - y u z ja r r o h lik k lin ik a s id a p a s tk i j a g ‘i s in g a n
b e m o r la r n in g y o t is h d a v o m iy lig i
13-jadval
D a v o la sh
k u n la ri V soni
B e m o rla r so n i
r.r.
u .r.
a
a .r
21
2
42
- 3
- 15
22
4
88
- 2
- 8
23
4
92
- 1
- 4
24
6
144
0
0
25
5
125
1
5
26
3
78
2
6
27
4
108
3
12
28
3
84
4
12
2 9
3
58
5
15
3 0
1
30
6
0
1 = 3 5
Z v = 8 4 9
1 = 2 9
P astki ja g ‘i singan b e m o rn in g klinikada yo tish in in g o ‘rtach a
davom iyligi quyidagiga teng:
. .
I V ' R
8 4 9
,
M
= ----------------=
= 2 4 , 2 k u n .
p
Ъ
0 ‘rta a rifm e tik v a z n n i y u q o rid a k o ‘rsatilgan
h iso b la sh d an
ta sh q a ri sod d alash tirilg an tez k o r usullari h am m avjud. S oddalash-
tirilg a n usu ld a hisoblash u c h u n quyidagilarga am al qilish lozim :
1. K o ‘p u ch ray d ig an va variatsio n q a to r m ark azid a b o ‘ladigan
v a ria n t sh a rtli ravishda A /d e b q abul qilinadi.
2. H a r qaysi variantning shartli m arkazdan chetlanishi ko‘rsatiladi.
3. H a r qaysi v a ria n td a ta fo v u tla rn in g c h a sto ta g a b o ‘lgan
k o ‘p ay tm asi (dr) topiladi.
43
4. Barcha tafovutlarning chastotasi ko‘paytirilgan yig‘indi topiladi:
T . d p R p = d {R{
+
d 2 R2.
5. S h artli o ‘rta c h a n in g haqiqiy o ‘rta c h a d a n farqi top ilad i.
6. 0 ‘rta c h a a rifm e tik vazn to p ilad i. Y u q o rid ag i 13-jadvaldan
quyidagi m a ’lu m o tla r olinadi:
Л/, = 24 , X
d r
= 29,
Л / = Л / + —
= 2 4 + ^ = 2 4 + 0 ,8 = 2 4 ,8 .
/>
35
A y rim
tib b iy o t te k sh iru v la rid a h a r b ir v a ria n t
b ir
m a rta
u c h ra y d i va u n d a to p ilg an o ‘rta nisbat o ‘rta a rifm e tik tu rg ‘unlik
deyiladi. U quyidagi form ula bilan topiladi:
K a rta d ia g ra m m a — g e o g rafik k a rta d a g i k o ‘p in c h a u stu n li
d iag ra m m a d an iborat b o ‘lgan grafik ta s v ird ir(l-e rasm ). Bu holatda
o ‘rta c h a n isb a td a b elgining yakka ta rtib d a g i
m o h iy a ti yashiringan
b o ‘lad i, v a ria tsio n q a to rn in g h a r xillik d arajasi k o ‘rsatilm aydi.
V a ria tsio n q a to r zich b o ‘lsa, y a ’ni ay rim n isb a tla r o ‘rta c h a nisbat
y a q in id a g u ru h la n sa , o ‘rta c h a nisbat a n a sh u y ig in d in i a n c h a
t o ‘la tavsiflaydi. A gar v ariatsio n q a to r c h o ‘zilib ketsa, y a ’ni
ayrim
n isb a tla r o ‘rta c h a n isb a td a n tu b d a n farq qilsa, o ‘rta c h a nisbat
m a z k u r yig‘indiga u n c h a tip ik m o s b o ‘lm aydi.
0 ‘rta c h a n isb a tla rn i c h u q u rro q o ‘rg an ish d a ,
b a h o b e rish d a va
so lish tirish d a v ariatsio n q a to rla r h a r xilligi h a m d a o ‘rta c h a nis-
b a tn in g a n iq la n ish in i tavsiflaydigan k o ‘rsa tk ic h la rd a n ( o ‘rta c h a
kv ad rat ta fo v u t,o ‘rta c h a nisbatdagi o ‘rta c h a x ato ) foydalaniladi.
U la rn i h isoblash usullari m axsus q o ‘lla n m a la rd a keltirilgan.
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