Correlation coefficient (also calle

Correlation coefficient (also called Pearson’s product moment coefficient)



where n is the number of tuples, and are the respective means of A and B, σA and σB are the respective standard deviation of A and B, and Σ(aibi) is the sum of the AB cross-product.
If rA,B > 0, A and B are positively correlated (A’s values increase as B’s). The higher, the stronger correlation.
rA,B = 0: independent; rAB < 0: negatively correlated

Results (Indonesian) 2:

Koefisien korelasi (juga disebut koefisien product moment Pearson)



di mana n adalah jumlah tuple, dan merupakan sarana masing-masing A dan B, σA dan σB adalah standar deviasi masing-masing A dan B, dan Σ (Aibi) adalah jumlah dari AB lintas-produk.
Jika rA, B> 0, A dan B berkorelasi positif (nilai A meningkat B). Semakin tinggi, korelasi kuat.
RA, B = 0: independen; RAB <0: berkorelasi negatif