data tanaman tomat = 15cm=2, 16cm=5, 17cm=2, 20cm=3, 21cm=2, 25cm=4, 27cm=2. tanaman tomat yg memiliki tinggi dibawah rata-rata ada berapa
Jawaban Terkonfirmasi
Total =
(15×2) + (16×5) + (17×2) + (20×3) + (21×2) + (25×4) + (27×2)
= 30 + 80 + 34 + 60 + 42 + 100 + 54
= 400
jumlah tanaman = 2 + 5 + 2 + 3 + 2 + 4 + 2 = 20
rata rata = 400 : 20 = 20
dibawah rata rata
= 2 + 5 + 2
= 9