Data Science, Machine Learning, Correlation, Data Visualization, Data Analysis.
of -1 to 1 — this is the correlation coefficient. If they’re inseparable (a score of 1), when Price takes a step up, Sales leaps too. If they’re frenemies (a score of -1), when Price jumps up, Sales takes a dive. And if they’re just acquaintances (a score of 0), they hardly notice each other’s