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8 11 14 15 16 17 19 22
1. rata rata = jumlah semua / banyaknya bilangan
= 8+11+14+15+16+17+19+22 / 8
= 122/8
= 15,25
2. median = nilai tengah
= 15+16 / 2
= 31/2
=15,5
catatan untuk nilai tengah karena nilai tengah ada dua maka pakai cara a+b dibagi 2
semoga bermanfaat
rata-rata =
rata-rata =
rata-rata =15,25
median = 15,5