What is variance
aik shmaryati pemana jisay tagayur kaha jata hai data points ke majmoai
ki had ya tagayur ko bayan karta hai. yeh hisaab karta hai ke har data point
data ke ost ( ost ) se kitna daur hai. har data point aur data set ke darmiyan ost
murabba farq ka matlab hai jo mapa jata hai, dosray lafzon mein. farq ka taayun
karne ke liye har data point aur wast ke darmiyan murabba inhiraf ke majmoay ko
data points ki kal tadaad minus aik se zarb diya jata hai. yeh wast se data ki aam
rawaangi ki pemaiesh faraham karta hai. ویریئنس ke mukhtalif shobo Bashmole fnans,
engineering, aur science mein mukhtalif istemaal hotay hain aur aksar imkani theory
aur shumariyat mein istemaal hotay hain. jab tagayur kam hota hai,
data points ko wast ke ird gird group kya jata hai. jab tagayur ziyada hota hai,
data points ziyada wasee pemanay par muntashir hotay hain .
Different types of variance
adaad o shumaar mein, tagayur is baat ki pemaiesh hai
ke data ka aik set apni ost qader se kitney wasee pemanay
par inhiraf karta hai. tagayur bohat si allag shakalain le sakta hai
, aur aksar shmaryati tajzia mein istemaal kya jata hai,
Bashmole : abadi mein tagayur : abadi mein tagayur abadi
ke ost se har mushahiday ke murabba inhiraf ka ost hai.
yeh majmoi abadi ke tagayur ko bayan karne ke liye
istemaal kya jata hai aur usay alamat 2 se zahir kya jata hai.
namona ka tagayur har mushahiday ki qader aur namoonay
ke wast ke darmiyan murabba inhiraf ka majmoa hai.
is ki numaindagi alamat s2 se ki jati hai,
aur usay adaad o shumaar ke namoonay se abadi ke farq k
a hisaab laganay ke liye istemaal kya jata hai.
data ke teesray aur pehlay کوارٹائل ke set ke darmiyan farq ko انٹرکوارٹائ
ل range ( iqr ) ka taayun karne ke liye istemaal kya jata hai,
jo ke tagayur ka aik pemana hai. mayaari inhiraf ke
muqablay mein, yeh out لیرز ke liye kam hassas hai
aur data ke darmiyani 50 % ke phelao ka taayun karne
ke liye mufeed hai. mayaari inhiraf is baat ka ishara hai
ke data ost qader se kitna inhiraf karta hai.
abadi ka mayaari inhiraf aur namona mayaari inhiraf bal t
arteeb alamaton ya s se zahir hota hai.
yeh tagayur ke murabba jarr ke tor par shumaar kya jata hai.
ost murabba kharabi ( mse ) : ریگریشن model mein,
ost murabba ghalti paish goi shuda eqdaar aur haqeeqi
eqdaar ke darmiyan ost murabba farq ki pemaiesh hai.
model ki pishin goi ki durustagi ki darja bandi karne
ke liye usay aksar istemaal kya jata hai. baqaya tagayur :
ریگریشن model mein ghaltion ya baqaya jaat ke tagayur
ko baqaya tagayur kaha jata hai. asal aur mutawaqqa
eqdaar ke darmiyan farq mapa jata hai. adaad o shumaar se durust nataij akhaz karne aur adaad o shumaar se bamani nataij akhaz karne ke liye mukhtalif qasmon ki Tafheem ki zaroorat hoti hai aur inhen kab istemaal karna hai
aik shmaryati pemana jisay tagayur kaha jata hai data points ke majmoai
ki had ya tagayur ko bayan karta hai. yeh hisaab karta hai ke har data point
data ke ost ( ost ) se kitna daur hai. har data point aur data set ke darmiyan ost
murabba farq ka matlab hai jo mapa jata hai, dosray lafzon mein. farq ka taayun
karne ke liye har data point aur wast ke darmiyan murabba inhiraf ke majmoay ko
data points ki kal tadaad minus aik se zarb diya jata hai. yeh wast se data ki aam
rawaangi ki pemaiesh faraham karta hai. ویریئنس ke mukhtalif shobo Bashmole fnans,
engineering, aur science mein mukhtalif istemaal hotay hain aur aksar imkani theory
aur shumariyat mein istemaal hotay hain. jab tagayur kam hota hai,
data points ko wast ke ird gird group kya jata hai. jab tagayur ziyada hota hai,
data points ziyada wasee pemanay par muntashir hotay hain .
Different types of variance
adaad o shumaar mein, tagayur is baat ki pemaiesh hai
ke data ka aik set apni ost qader se kitney wasee pemanay
par inhiraf karta hai. tagayur bohat si allag shakalain le sakta hai
, aur aksar shmaryati tajzia mein istemaal kya jata hai,
Bashmole : abadi mein tagayur : abadi mein tagayur abadi
ke ost se har mushahiday ke murabba inhiraf ka ost hai.
yeh majmoi abadi ke tagayur ko bayan karne ke liye
istemaal kya jata hai aur usay alamat 2 se zahir kya jata hai.
namona ka tagayur har mushahiday ki qader aur namoonay
ke wast ke darmiyan murabba inhiraf ka majmoa hai.
is ki numaindagi alamat s2 se ki jati hai,
aur usay adaad o shumaar ke namoonay se abadi ke farq k
a hisaab laganay ke liye istemaal kya jata hai.
data ke teesray aur pehlay کوارٹائل ke set ke darmiyan farq ko انٹرکوارٹائ
ل range ( iqr ) ka taayun karne ke liye istemaal kya jata hai,
jo ke tagayur ka aik pemana hai. mayaari inhiraf ke
muqablay mein, yeh out لیرز ke liye kam hassas hai
aur data ke darmiyani 50 % ke phelao ka taayun karne
ke liye mufeed hai. mayaari inhiraf is baat ka ishara hai
ke data ost qader se kitna inhiraf karta hai.
abadi ka mayaari inhiraf aur namona mayaari inhiraf bal t
arteeb alamaton ya s se zahir hota hai.
yeh tagayur ke murabba jarr ke tor par shumaar kya jata hai.
ost murabba kharabi ( mse ) : ریگریشن model mein,
ost murabba ghalti paish goi shuda eqdaar aur haqeeqi
eqdaar ke darmiyan ost murabba farq ki pemaiesh hai.
model ki pishin goi ki durustagi ki darja bandi karne
ke liye usay aksar istemaal kya jata hai. baqaya tagayur :
ریگریشن model mein ghaltion ya baqaya jaat ke tagayur
ko baqaya tagayur kaha jata hai. asal aur mutawaqqa
eqdaar ke darmiyan farq mapa jata hai. adaad o shumaar se durust nataij akhaz karne aur adaad o shumaar se bamani nataij akhaz karne ke liye mukhtalif qasmon ki Tafheem ki zaroorat hoti hai aur inhen kab istemaal karna hai