Question

ada yang bisa bantu?
MTK kelas 8
Terimakasih

•Jawaban Spam/Bot Report​

Answer 1

Jawaban:

1. Mean/ rata rata : 10

median : 9

2. Mean : 7,4

median : 7

Penjelasan dengan langkah-langkah:

1.) Mean = jumlah data /banyak data

= 10+15++8+9+9+10+7+13+9+8+10+7+15/ 13

=130/13

=10

2.) Mean = Jumlah data(Nilai× b.siswa)/B.data

= (6×8) + (7×9)+(8×6)+(9×7)/ (8+9+6+7)

= 222/30

= 7,4

Answer 2

Verified answer

Penjelasan dengan langkah-langkah:

1)

Data : 10, 15, 8, 9, 9, 10, 7, 13, 9, 8, 10, 7, 15

Banyak data = 13

Mean :

= Jumlah data/banyak data

= (10+15+8+9+9+10+7+13+9+8+10+7+15)/13

= 130/13

= 13

Median :

7, 7, 8, 8, 9, 9, 9, 10, 10, 10, 13, 15, 15

Median = 9

2)

Data :

Nilai : 6 7 8 9

Jumlah Siswa : 8 9 6 7

---------------------------------------

Mean :

= Jumlah data/banyak data

= ((6 × 8)+(7 × 9)+(8 × 6)+(9 × 7))/(8+9+6+7)

= (48 + 63 + 48 + 63)/30

= 222/30

= 7,4

Median :

6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,9,9,9,9,9,9,9

= (7+7)/2

= 14/2

= 7