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Big Data Processing Syllabus

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Course Notes: Quantitative Data

A data distribution (commonly presented using histogram) can be analyzed by utilizing these components S HAPE: Bell-shaped, Left-skewed, Right-skewed, etc. C ENTER: Mean and Median S PREAD: Maximum & Minimum value, Quartile, Interquartile range O UTLIERS: Analyze the existence of outliers. Visit this  to find out how to determine outliers . The relationship between mean and median on different shapes of data distribution typically can be considered as follows: Bell-shaped: Mean = Median Left-skewed: Mean < Median Right-skewed: Mean > Median The Five Numbers defines five statistical measures to obtain a dataset profile/summary so that the center and the spread of the dataset can be identified. The Five Numbers are: Min/Minimum Q1/First Quartile Median. Also known as Q2/Second Quartile Q3/Third Quartile Max/Maximum Occasionally, The Five Numbers are complemented by Standard Deviation and Interquartile Range to produce a more comprehensive preview of the dataset. Standard De...