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Off Topic / Re: clown arrested in kentucky
« on: September 24, 2016, 04:16:31 PM »2) b^2 - 4ac > 6^2 - (4*1*3) > 36 - 12 = 12, b^2 - 4ac > 0 therefore the equation has two real roots
3)

BDF = 13
4) 1, 2, 3, 3, 5, 8, 9
mean = (1 + 2 + 3 + 3 + 5 + 8 + 9)/2 = 15.5
1 - 15.5 = -14.5
2 - 15.5 = -13.5
3 - 15.5 = -12.5
3 - 15.5 = -12.5
5 - 15.5 = -10.5
8 - 15.5 = -7.5
9 - 15.5 = -6.5
(-14.5)^2 = 210.25
(-13.5)^2 = 182.25
(-12.5)^2 = 156.25
(-12.5)^2 = 156.25
(-10.5)^2 = 110.25
(-7.5)^2 = 56.25
(-6.5)^2 = 42.25
sum = 913.75
S.D. = 152.291666667
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