Question

pliss bantuin jawab besok dikumpulin​

Answer 1

7,95

Penjelasan dengan langkah-langkah:

Banyak siswa = 2 + 7 + 3 + 5 + 2 + 1 = 20

Mean = (10 x 2) + (9 x 7) + (8 x 3) + (7 x 5) + (6 x 2) + (5 x 1) / 20

= 20 + 63 + 24 + 35 + 12 + 5 / 20

= 159 / 20 = 7,95