NAMA : SARTIKA SARI AGUSTIN NPM : 0953010010
LEAST SQUARE DATA :
x | y | x . y | x² |
1 | 1.0 | 1 | 1 |
2 | 3.0 | 6 | 4 |
3 | 5.0 | 15 | 9 |
4 | 8.0 | 32 | 16 |
5 | 12.0 | 60 | 25 |
Σx = 15 | Σy = 24 | Σx.y = 114 | Σx² = 55 |
Ditanya : Model matematika y = ax+b ??? Σxy = Σx².a + Σx.b Σy = Σx.a + n.b JAWAB : 114 = 55a + 15b x1 114 = 55a 24 = 15a + 5b x3 24 = 45a 42 = 10a 4.2 = a
24 = 15 (4.2) + 5 24 – 63 = 5b -39 = 5b -7.8 = b Jadi model matematikanya y = 4.2x – 7.8 | 
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