N A Z O R A T SA V O LLA R I
1. V ariatsion qatorni tuzish va o 'rta c h a arifm etik vaznni hisoblashda hisobga
o linadigan qanday belgiiardan foydalanish kerak?
2. S hifokor bergan m aslahatning o 'rta c h a so n in i to p in g (stenokardiyasi
b o r 1 bem orga):
44
M a s la h a tla r so n i
0
5
10
15
20
B e m o r la r so n i
5
15
50
20
10
3. S h ifo k o rn in g h a r b ir b e m o rg a s a r f q ilin g a n o 'r ta c h a v aq tin i an iq lan g .
S a rfla n g a n v a q t, m in .
20
25
30
40
B e m o r la r s o n i
4
5
2
1
2.6. Dinamik qatorlar
D in a m ik q a to rla r h o d isa la rn in g m a ’lum b ir vaqt o ralig ‘ida
o 'z g a ris h in i o 6rg an ish d a yo rd am beradi (14-jadval). Bu q a to rla r
m u tla q nisbiy so n la rd a , o ‘rta c h a n isb a tla rd a ifodalanadi.
14-jadval
G r ip p g a q a r s h i e m la n g a n k is h ila r s o n i d in a m ik a s i
Yil
E m la n g a n la r soni
2 0 0 0
500
2001
6 0 0
2 0 0 2
9 0 0
2 0 0 3
1400
D in a m ik q a to rla rn i o ‘rg a n ish d a m u tla q o ‘sish (k am ay ish )
v a o ‘sish (k a m a y ish ) s u r ’ati k o ‘rs a tk ic h la rid a n fo y d ala n ila d i.
M u tla q o ‘sish sh u yil va keyingi yil so n i b ila n a n iq la n a d i.
Misol.
2001- yil grippga qarshi e m la n g an kishilar so n in in g m u tlaq o ‘sishi
6 0 0 - 5 0 0 = 1 0 0 ga ten g .
2002-yil u c h u n 9 0 0 - 6 0 0 = 3 0 0 n afar kishi. M u tlaq o ‘sishning
o ‘tg an yil darajasiga n isb a ta n (foizlarda) o ‘sish s u r’ati an iqlanadi:
2001 - yil u c h u n
• 100 = 20 foiz;
2 0 0 2 - yil u c h u n
• 100 = 50 foiz.
D inam ik qatorni o ‘rganish (15-jadval) shuni ko ‘rsatadiki, fabrika
ishchilarini grippga qarshi em lash yildan-yilga o ‘sib borm oqda.
45
15-jadval
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