nilai 4,5,6,7 frekuensi 2,3,5,4 tentukan mean, median,modus

median : 6
modus : 6
mean :5.78

mean
(4x2)+(5x3)+(6x5)+(7x4 ):[2+3+5+4]
8+15+30+28:14
81:14=5,7
median
4,4,5,5,5,6,6,6,6,6,7,7,7,7
6+6/2=12/2=6
modus (nilqi yg sering muncul )
6
maaf kaalau salah