1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

141x-2-10210y413-1-25 . 2 (23. 2 (24. 3 (25∑ xx = i= 0n∑ y 5y = i= = 1n 5S xy = ∑ xy − nx.y = −13−0×1 = −13S2 2xx = ∑ x − nx = 10−5×0 = 10iS xy −13a = = = −1/3S xx 10b = y − ax = 1−0×( −1/3)= 13µ = = 0/7542401920/8 −0/75P( ∑ X i < 192 )P(X < ) = P(X < 0/8)= P(Z < ) = 1i=1240380240P(Z < 4 ) = φ4= 1xy-8-10-2-2-132x4104110. 4 (26. 2 (27. 2 (28Var(Bˆ )=2δe∑ − x)2(xi=1∑2(yi − ŷ)n − 2∑ − x)2(xi=1× 84 − 2= 22. 2 (29. 2 (30