Guliston davlat universiteti ijtimoiy-iqtisodiyot fakulteti 70-19 – guruh talabasi jo'rayev Shahzodning statistika fanidan 3-seminar topshirig’i savollarga javob bering

R=1+3,322xlogn
R=1+3,322xlog40
R=1+5,924
R=6
Demak, 40 ta ishchini 6 ta guruhga ajratib o’rganish maqsadga muvofiqdir.
Oraliq kattaligini hisoblaymiz:

• 
  ishchilarning ish staji bo’yicha oraliq kattaligi
  

h= = .

• 
  Ishchilarning mehnat unumdorligi bo’yicha oraliq kattaligi:
  

h=

Ish staji bo’yicha ishchilar
Guruhi (to’liq yil hisobida)

1. 
   1 yilgacha
   
2. 
   1 – 5
   
3. 
   5 – 10
   
4. 
   10 – 15
   
5. 
   15 – 20
   
6. 
   20 va undan yuqori
   

Mehnat unumdorligi bo’yicha
ishchilar guruhi (ming so’m)

1. 
   71,0 – 92,5
   
2. 
   92,5 – 114,0
   
3. 
   114,0 – 135,5
   
4. 
   135,5 – 157,0
   
5. 
   157,0 – 178,5
   
6. 
   178,5 – 200,0.
   

Har ikkala belgi uchun guruhlar chegaralarini aniqlab olamiz: