Ответ:
Х=-1×0,33+6×0,61+4×0,6+2×0,3=-0,33+3,66+2,4+0,6=6,33
6,33^2=40,0689
Х^2=(-1)^2×0,33+36×0,61+16×0,6+4×0,3=0,33+21,96+9,6+1,2=33,09
D=33,09-40,0689=-6,9789
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Ответ:
Х=-1×0,33+6×0,61+4×0,6+2×0,3=-0,33+3,66+2,4+0,6=6,33
6,33^2=40,0689
Х^2=(-1)^2×0,33+36×0,61+16×0,6+4×0,3=0,33+21,96+9,6+1,2=33,09
D=33,09-40,0689=-6,9789