Extensive solutions to sample exam statistical learning 2021

Sample exam

Question I
EEËJ =
Ei vol 3 -
-
of BEÈJ = EEÈ) -

Ei

a- ?
TÈ .
ECCÈ -

oid =L 9




# ELËJ ) ( EVI AD )
'


EL -


Oil ] =
E -

+
-




=
EL -

EEN )
'

+ ECCEEÈJ -

G -12 EEÖI -

EEÔIIICECÖIJ -

Ei )


= van CÖI ) +
HÈ + 0

combiased
2
=
Ti 1- 0


b. Tilstra Ê ,
DIO
,
E- [ dè] =
toi

G
to ( vaca (Ek -


+



)
.




Ek Jaa? 2de Ei
TÉ ( is?
-




=
+



IEEE EEA
? zetsel
Enzo ? -1 _



+


' '

=
de
'
1- a
'
E
'
+ E - zat




@2tE4d2-2E2axE2f.0.c
insect )
=




:



use
'

(a) = 2 ( 57 )& -
20--2=0
←
(a) =
2 # + E) so strictly convex


-2

-0
+ =
minimize meld )

( Eten) Ê
ga , tilt ) =D




IJ
IJ