jawab no 10 ya pakai cara tolong makasih.....

jawab

data nilai...: 6, 7 , 8, 9 , 10
frekuensi...: 4, 5,  x, 2,  5
f.xi = 24+ 35 + 8+x + 18 + 50 = x + 135
f = 16+x

X = (x +135)/(16+x) = 6,2
x + 135 = 6,2(16 + x)
x + 135 = 99,2 + 6,2 x
7,2 x = 35,8
x - 4,9
bulatkan x = 5

modus = 7,8, 10

n = 16+ 5=21
Median data ke 1/2 (21+1)  = suku ke 11
Me = 8