Tolong dong cepetan besok di kumpulin makasih

Mean = (2 x 7) + (3 x 15) + (4 x 24 ) + ( 5 x 6 )+ ( 6 x 8) dibagi 60 = 14 + 45 + 96 +30 + 48 = 233 / 60 = 3.89