PAN formulates shared challenge tasks for plagiarism detection, [25] authorship identification, [26] author gender identification, [27] author profiling[28] vandalism detection, [29] and other related text analysis tasks, many of which hinge on stylometry. Case studies of interest[ edit ] Around to BC, as recorded in the Book of Judgesone tribe identified members of another tribe in order to kill them by asking them to say the word Shibboleth which in the dialect of the intended victims sounded like "sibboleth". Helander was first convicted of writing the letters and lost his position as bishop but later partially exonerated.

The most recognized types of descriptive statistics are the mean, median, and mode, which are used at almost all levels of math and statistics. However, there are less-common types of descriptive statistics that are still very important.

People use descriptive statistics to repurpose hard-to-understand quantitative insights across a large data set into bite-sized descriptions. A student's grade point average GPAfor example, provides a good understanding of descriptive statistics. The idea of a GPA is that it takes data points from a wide range of exams, classes, and grades, and averages them together to provide a general understanding of a student's overall academic abilities.

A student's personal GPA reflects his mean academic performance. Measures of Descriptive Statistics All descriptive statistics are either measures of central tendency or measures of variability.

These two measures use graphs, tables, and general discussions to help people understand the meaning of the analyzed data. Measures of central tendency describe the center position of a distribution for a data set. Measures of variability, or the measures of spread, aid in analyzing how spread-out the distribution is for a set of data.

For example, while the measures of central tendency may give a person the average of a data set, it does not describe how the data is distributed within the set. So, while the average of the data may be 65 out ofthere can still be data points at both 1 and Measures of variability help communicate this by describing the shape and spread of the data set.

Range, quartilesabsolute deviation, and variance are all examples of measures of variability.Good writing skills are essential for effective communication.

Learning to write well takes time and practice. Be sure to leave yourself enough time for all of these steps. Definitions: A sample is the group you actually take data from. The population is the group you want to know something about.. In Good Samples, Bad Samples, later in this chapter, you’ll see how samples are actually taken..

The sample is usually a subgroup of the population, but . 🔥Citing and more! Add citations directly into your paper, Check for unintentional plagiarism and check for writing mistakes. The Purdue University Online Writing Lab serves writers from around the world and the Purdue University Writing Lab helps writers on Purdue's campus.

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Descriptive Reporting