public function dataProviderForPMF()
{
return [[[1, 1], [0.5, 0.5], 0.5], [[1, 1], [0.4, 0.6], 0.48], [[7, 2, 3], [0.4, 0.35, 0.25], 0.0248], [[1, 2, 3], [0.2, 0.3, 0.5], 0.135], [[2, 3, 3, 2], [0.25, 0.25, 0.25, 0.25], 0.024], [[5, 2], [0.4, 0.6], 0.07741440000000005]];
}