Total Frekuensi: 24
- Mencari total nilai:
Total nilai = (27 x 5) + (28 x 4) + (29 x 4) + (30 x 5) + (32 x 5) + (35 x 1)
Total nilai = 135 + 112 + 116 + 150 + 160 + 35
Total nilai = 708
- Mencari nilai rata-rata:
Nilai rata-rata = Total nilai / total frekuensi
Nilai rata-rata = 708 / 24
Nilai rata-rata = 29,5