【用戶】Jia Hong Lin
【年級】大三上
【評論內容】SSxy = Σxy- (ΣxΣy:n) =4903-(39x1092:10) = 4903-4258.8 =644.2R= SSxy : Sqrt(SSx x SSy)SSx= Σx2 - (Σx)2:n = 209-(39)2:10 = 209-152.1 = 56.9SSy= Σy2 - (Σy)2:n =128940-(1092)2:10 = 128940-119246.4 = 9693.6把數字放回去。R= 644.2 : Sqrt(56.9x9693.6) = 644.2 : 742.675 = 0.86740