What is the quadratic regression equation for the data set?
x : - 6, - 4, - 2, 0, 2, 4, 6
y : 4.56, 2.84,.45, 0, - 1.14, - 2.1, - 2.48
a) yˆ=0.032x2+0.601x-0.255
b) yˆ=0.032x2-0.601
c) yˆ=0.032x2-0.601x-0.255
d) yˆ=0.032x2-0.601x
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