("Arthur L. Bowley") returned 1 hits
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In one of the first statistical textbooks, Arthur Bowley (1901) illustrated an arithmetic and graphical analysis of time-series data using the total value of British and Irish exports from 1855-1899. He presented a line graph of the time-series data, supplemented by overlaid line graphs of 3-, 5- and 10-year moving averages. His goal was to show that while the initial series showed wide variability, moving averages made the series progressively smoother.
Category:
Statistics & Graphics
