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Approved for 2.5 Category A+ CE Credits 

This PDF article introduces the reader to the basic concepts of population and sampling as well as frequency distributions. You will learn the key measures of central tendency and dispersion, and how statistical significance deviates from ordinary concepts of significance. After reading, you will be able to explain that correlation is not the same as causation, and interpret charts showing statistical data.  

This activity may be available in multiple formats or from different sponsors. ARRT regulations state that an individual may not repeat a self-learning activity for credit if it was reported in the same biennium.