“PERBANDINGAN PREDIKSI PRODUKSI TIMAH MENGGUNAKAN MODEL SIMPLE MOVING AVERAGES, WEIGHTED MOVING AVERAGES DAN DATA AKTUAL DI PROVINSI KEPULAUAN BANGKA BELITUNG: COMPARISON PREDICTION OF TIN PRODUCTION USING SIMPLE MOVING AVERAGES MODELS, WEIGHTED MOVING AVERAGES AND ACTUAL DATA IN BANGKA BELITUNG ISLANDS PROVINCE”. Fraction: Jurnal Teori Dan Terapan Matematika, vol. 3, no. 1, June 2023, pp. 29-35, https://doi.org/10.33019/fraction.v3i1.40.