Background Tobacco price is an important determinant of smoking behaviour. Using electronic point-of-sales (EPOS) data, this study assesses purchase price of factory-made cigarettes (FMC) and ...
Tesla has rallied ~40% despite fundamentals, driven by renewed narrative buzz, Musk's interventions, and xAI synergy ...
Learn what residual standard deviation is, how to calculate it in regression analysis, and why it's crucial for measuring predictability and goodness-of-fit in data modeling.
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