d1_square and d2_square are the combined mean deviation .
float d1_square = ( mean1 - combinedMean ) * ( mean1 - combinedMean ) ; float d2_square = ( mean2 - combinedMean ) * ( mean2 - combinedMean ) ; Console . Write ( " d1 ▁ square : ▁ " + d1_square + " ▁ " ) ; Console . WriteLine ( " d2 _ square : ▁ " + d2_square ) ;