public function dataProviderForSumOfSquaresDeviations()
{
return [[[3, 6, 7, 11, 12, 13, 17], 136.8571], [[6, 11, 12, 14, 15, 20, 21], 162.8571], [[1, 2, 3, 6, 7, 11, 12], 112], [[1, 2, 3, 4, 5, 6, 7, 8, 9, 0], 82.5], [[34, 253, 754, 2342, 75, 23, 876, 4, 1, -34, -345, 754, -377, 3, 0], 6453975.7333]];
}