Mundarija kirish. 3 I bob. Transmiluy korporatsiyalarning paydo bo’lishi va rivojlanishining ilmiy nazariy asoslari 8

i nY= ar,
n i= 1

(1)

Yana bir muhim ko’rsatkichlardan biri bu - Mediana. Mediana - tanlanmaning medianasi, ya’ni yi2<~._n variatsion qatoming o’rtasigato’g’ri keladigan varianta:

iy_ni2 + y(nm+i- juft bo'Isa T
medi =i 2 agar n
и yl,_a] +1 agar n -toq bo'Isa

(2)

Bunga qo’shimcha tarzda. o’rtacha kvadratik cheklanishini ko’rishimiz mumkin. St Dev - o’rtacha kvadratik chetlashish (standart og’ish):




(3)

Bulaming hammasini Minitab dasturi yordamida olishimiz mumkin va olingan ma’lumotlar bo’yicha quyidagi jadvalni keltirish lozim
2.2.2-jadval

O’zgaruvchilarning asosiy statistik ko’rsatkichilari
O’zgaruvchi

Mean	St Dev	! Minimum |	Median	Maximum	Range
У	50479	20758	[24335	45713	84740	60405
X	38785	19518	10705	35085	79230	68525

Manba: Muallif tomonidan MINITAB dasturi orqali hisoblangan.

43

Ko’rib turganimizdek 1991-2018 yillar oralig’idagi o’rtacha Jahon YalM si 50479 mlrd dollarga, eng maksimal daraja 84740 mlrd dollarga , eng minimal daraja 24335 mlrd dollarga, eng katta va eng kichik ko’rsatkichlar orasidagi farq esa 60405 mlrd. AQSh dollariga tengdir.
Umumiy TMKlar kapitallashuv qiymatining o’rtachasi 38785 mlrd dollami, maksimal yillik kapitallashuvi 79230 mlrd dollami, eng minimal yillik kapitallashuvi 10705 mlrd dollami va maksimal va minimal qiymatlar o’rtasidagi farq 68525 mlrd dollami tashkil qilmoqda.
2) Regressiya tenglamasini tuzish
Chiziqli regressiya modelining umumiy tenglmasi quyidagi ko’rinishga ega:
у = p$ + p&x + e
Minitab dasturi yordamida quyidagicha regressiya tenglamasini ko’rishimiz mumkin:
y-= 12396 + 0,982x
Bu yerda:
b$ = 12396 x o’zgaruvchi nolga teng bo’lgan paytda у ning baholangan o’rtacha qiymati ya’ni x o’zgaruvchiga bog’liq boshqa omillar ta’sirida;
b& = 0,982 x ni bir birlikka o’zgarishi у o’rtacha qiymatining 0,982 birlikka o’sishini baholaydi;

3. 
   Determinatsiva koeffitsienti
   

Chiziqli regressiyada foydali statistikalardan biri bu R² - determinatsiya koeffitsientidir. R² у о'zgaruvсhanligining bashorat qiluvchi o’zgaruvchi tomonidan topilgan regressiya tenglamasi yordamida tushintirilishi mumkin bo’lgan foizini bildiradi. Tenglamaning aniqligi yuqori bo’lganda, R² 1 ga yaqin bo’ladi. R² ni quyidagicha fomiular yordamida toppish mumkin:

44

Yillar	У	lny	X	lnx
1991	24334,979	10,09967006	11185,05541	9,322333828
1992	25170,89	10,13344345	10705,34327	9,278498267
1993	25858,783	10,16040559	13764,16145	9,529823496
1994	27804,173	10,2329414	14470,19365	9,579846202
1995	31003,485	10,3418549	17087,72144	9,74611544
1996	31860,624	10,36912617	19594,31451	9,882994727
1997	31788,616	10,36686352	21708,24715	9,98544752
1998	31649,638	10,36248199	25445,27179	10,14428522
1999	32765,284	10,39712482	33491,84934	10,41905739

45

2000	33843,968	10,42951606	30963,1779	10,34055397
2001	33593,509	10,42208814	26815,73499	10,19674412
2002	34720,425	10,45508341	22770,28968	10,03321188
2003	38982,148	10,57085908	31253,84657	10,34989774
2004	43876,975	10,68914497	36677,35836	10,50991491
2005	47548,38	10,769503	40439,78486	10,60756935
2006	51496,396	10,8492671	49993,90427	10,81965636
2007	58118,615	10,97024129	60304,91372	11,00716887
2008	63752,934	11,06277049	32268,48925	10,38184647
2009	60393,888	11,00864319	44608,40465	10,70567757
2010	66025,267	11,09779278	51470,07556	10,84875586
2011	73244,805	11,2015626	44383,82408	10,70063036
2012	74639,245	11,22042172	51133,27333	10,84219071
2013	76769,752	11,24856599	60240,15218	11,00609439
2014	78852,334	11,27533219	63427,81416	11,05765775
2015	74689,448	11,2210941	61895,39239	11,03320102
2016	75734,639	11,23499092	64998,37096	11,08211749
2017	80144,579	11,29158752	79229,87871	11,28010876
2018	84740,322	11,34734682	65660,97822	11,09226009