Jawaban:
a. 20
Penjelasan dengan langkah-langkah:
Rata-rata:
[tex] \frac{(4 \times 1) + (5 \times 3) + (6 \times 10) + (7 \times 9) + (8 \times 6) + (9 \times 4) + (10 \times 1) }{1 + 3 + 10 + 9 + 6 + 4 + 1} [/tex]
[tex] = \frac{236}{34} = 6.94[/tex]
banyak murid yang nilainya diatas rata rata
[tex] =9 + 6 + 4 + 1 = 20[/tex]
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Jawaban:
a. 20
Penjelasan dengan langkah-langkah:
Rata-rata:
[tex] \frac{(4 \times 1) + (5 \times 3) + (6 \times 10) + (7 \times 9) + (8 \times 6) + (9 \times 4) + (10 \times 1) }{1 + 3 + 10 + 9 + 6 + 4 + 1} [/tex]
[tex] = \frac{236}{34} = 6.94[/tex]
banyak murid yang nilainya diatas rata rata
[tex] =9 + 6 + 4 + 1 = 20[/tex]