Diketahui data 7, 3, 4, x, 8, 6, 8, 3, 6, 7, 9, 4, 4, 3, 7,8. jika rata-rata data 6, tentukan:

By Posted on

a. median data
b. modus data

Diketahui data 7, 3, 4, x, 8, 6, 8, 3, 6, 7, 9, 4, 4, 3, 7,8. jika rata-rata data 6, tentukan:

Rata-rata =  frac{7+3+4+x+8+6+8+3+6+7+9+4+4+3+7+8}{16} = frac{87+x}{16}

96 = 87 +x
x = 96-87= 9

median : 3 3 3 4 4 4 6 6 7 7 7 8 8 8 9 9 =  frac{data₇ +data₈}{2} = frac{6+6}{2} = 6

modus : 3, 4, 7 , 8