Energy Descriptivr Statistics

Data Analysis: Describing Data - Descriptive Statistics Accountability Modules WHAT IT IS set to Table of Contents Descriptive statistics include the numbers, tables, charts, and graphs used to describe, organize, summarize, and drink young information. Descriptive statistics atomic number 18 about often used to examine: + interchange t destructionency (location) of information, i.e. where info tend to fall, as mensurable by the mean, median, and mode. + public delineation (variability) of data, i.e. how spread out data are, as measurable by the sectionalization and its square root, the standard deviation. + skew (symmetry) of data, i.e. how concentrated data are at the low or high end of the cuticle, as measured by the skew index. + kurtosis (peakedness) of data, i.e. how concentrated data are approximately a single value, as measured by the kurtosis index. Any verbal description of a data set should include examination of the higher up. As a rule, looking at ce ntral tendency via the mean, median, and mode and public exposure via the division or standard deviation is not sufficient. (See the definitions infra for more details.) DEFINITIONS The following definitions are vital in savvy descriptive statistics: + Variables are quantities or qualities that may assume whatsoever ace of a set of values. Variables may be separate as nominated, ordinal, or interval.

Nominal variables use names, categories, or labels for soft values. Typical nominal variables include gender, ethnicity, job title, and so forth. ordinal variables, like nominal variables, are categorical variables. However, the o rder or rank of the categories is meaningful! . For example, round members may be asked to indicate their happiness with a training score on an ordinal scale ranging from poor to excellent. Such categories could be converted to a numeral scale for further analysis. Interval variables are purely mathematical variables. The nominal and ordinal variables noted above are separate since they do not permit making statements about degree, e.g., Person...If you emergency to get a full essay, order it on our website: BestEssayCheap.com

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