variance modalinte sthiramaaya ilaasthikatha

ganithashaasthra dhanakaaryathil, variance modalinte sev allengil sthiramaaya ilaasthikatha ennathu stokkaastik asthirathayum liverage efakttum pidichedukkaan sramikkunna oru stokkaastik asthiratha modalaan. saambathika vyavasaayathile pariseelakar, prathyekichu ekvittikaludeyum charakkukaludeyum modalinginaayi eee model vyaapakamaayi upayogikkunnu. 1975ll joonn cox aanu ithu vikasippichath.
chalanathmakam.
inipparayunna yaadruchika deferential samavaakyamanusarich parinamikkunna oru prakriya sev model vivarikkunnu
s" ennathu spott prais, "t" ennathu samayam, "μ" ennathu drifttinte swabhaava savisheshathakalaan, "σ", "γ" enniva mattu paaraamettarukalaanu, "w" oru brouniyan chalanamaanu.
athinaal njangalkk 
sthiramaaya paaraamettarukal formula _ 3 vyavasthakalude formula _ 4 thripthippeduthunnu. 
paaraameettar formula _ 5 asthirathayum vilayum thammilulla bandhathe niyanthrikkunnu, ithu modalinte kendra savisheshathayaanu. formula _ 6-ll oru ohari vipanikalil saadhaaranayaayi nireekshikkappedunna oru prabhavam naam kaanunnu, avide oru stokkinte asthiratha athinte vila kurayukayum liverage anupatham vardhikkukayum cheiyunnu. neremarichu, charakk vipanikalil, nammal palappozhum formula 7 nireekshikkunnu, athil oru charakkinte vilayude asthiratha athinte vila vardhikkunnathinanusaricha vardhikkukayum liverage anupatham kurayukayum cheiyunnu. soothravaakyam 8 nireekshikkukayaanenkil eee maathruka luis bachilier thante phd theesis "oohakkachavada sidhaantham" ennathil nirddeshicha maathrkayaayi kanakkaakkappedunnu.

