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Underfltti ng vs. oveffitting U{*derfkflnsl dah nonllnler dihampirf dengan rnodel Hnier erer*tt$ng: wlde rnde} ffir*,t*rqggl er rcksi F-Elk?! * ata )a lj * **'i ;l t a rt a' s;* A straight-line fit forced 0fit0 a cunred'det* set Prcdicti$ from a I$&gf*e petfr*omiat Netrl &te point l-easLsqr*ares lixe n* br+ &,X * flXt* ... + b,u{" eives a ;xrf*ct fit to sixteen data poinB but rann$t predict the *everrt*c*th p$int as we{l as a {irst-degree le**t-squares line. ffiffi:::; pr*dicticn A lS-degree polynomial

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Underfltti ng vs. oveffitting

U{*derfkflnsldah nonllnlerdihampirf denganrnodel Hnier

erer*tt$ng:wlde rnde}ffir*,t*rqggler rcksiF-Elk?!

*ata

)alj *

**'i;l

ta rta'

s;*

A straight-line fit forced0fit0 a cunred'det* set

Prcdicti$ from aI$&gf*e petfr*omiat

Netrl&tepoint

l-easLsqr*ares lixe

n* br+ &,X * flXt* ... + b,u{"eives a ;xrf*ct fit to sixteen data poinB butrann$t predict the *everrt*c*th p$int as we{las a {irst-degree le**t-squares line.

ffiffi:::;pr*dicticn

A lS-degree polynomial