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Date: 11-2-2021
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Given a statistical distribution with measured mean, statistical median, mode, and standard deviation , Pearson's first skewness coefficient, also known as the Pearson mode skewness, is defined by
which was incorrectly implemented (with a spurious multiplicative factor of 3) in versions of the Wolfram Language prior to 6 as PearsonSkewness1[data] after loading the package Statistics`DescriptiveStatistics`.
Pearson's second coefficient is
which was implemented in versions of Wolfram Language prior to 6 as PearsonSkewness2[data].
REFERENCES:
Hildebrand, D. K. Statistical Thinking for Behavioral Scientists. Boston: Duxbury, 1986.
Kenney, J. F. and Keeping, E. S. Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, pp. 101-102, 1962.
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كيف تساهم الأطعمة فائقة المعالجة في تفاقم مرض يصيب الأمعاء؟
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مشروع ضخم لإنتاج الهيدروجين الأخضر يواجه تأخيرًا جديدًا
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المجمع العلمي يختتم دورته القرآنية في فن الصوت والنغم بالطريقة المصرية
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