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Memahami Rumus Variansi

Manfaat : rumus variansi digunakan untuk mengukur keragaman (variasi) data.Rumus : $\displaystyle \frac{\sum_i^N (x_i-\mu)^2}{N}$ $\mu$ : rata-rata (mean)$x_i$ : data ke iN : jumlah dataLangkah-langkahnya adalah :Mencari nilai $\mu$, yaitu rata-rata. Menghitung perbedaan ...

Menghitung Seberapa Cocok Model Regresi Yang Digunakan

Manfaat : mengukur kecocokan model regresi Model regresi yang pas akan menghasilkan nilai prediksi yang bagus. Tiga uji statistik yang digunakan dalam regresi Ordinary Least Squares (OLS) untuk mengevaluasi kesesuaian model regresi: 1.R-squared,2.Keseluruhan uji-F, dan3.Root Mean Square Error (RMSE).