jawab sekarang yaa pliss yg benar

Rata rata=[(2*4)+(3*4)+(4*5)+(5*4)+(6*3)] / (4+4+5+4+3)
=(8+12+20+20+18) / 20
=78/20
=3,9kg

mean = (2.4+3.4+4.5+5.4+6.3)÷20
mean = (8+12+20+20+18)÷20
mean = 78÷20
mean = 3,9
jadi jawabannya d. 3,9