Variance | Probability Theory, Statistics, Random Variable, Probability Distribution, Absolute Deviation, Standard Deviation, Root Mean Square Deviation, Covariance, Observational Error

Lambert M. Surhone (u. a.)

ISBN 10: 6130338511 / ISBN 13: 9786130338510

Published by OmniScriptum, 2026

About this Item

Variance | Probability Theory, Statistics, Random Variable, Probability Distribution, Absolute Deviation, Standard Deviation, Root Mean Square Deviation, Covariance, Observational Error | Lambert M. Surhone (u. a.) | Taschenbuch | Englisch | 2026 | OmniScriptum | EAN 9786130338510 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.

Seller Inventory # 101384915

Bibliographic Details

• Title: Variance | Probability Theory, Statistics, Random Variable, Probability Distribution, Absolute Deviation, Standard Deviation, Root Mean Square Deviation, Covariance, Observational Error
• Publisher: OmniScriptum
• Publication Date: 2026
• Language: English
• ISBN 10: 6130338511
• ISBN 13: 9786130338510
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 8D millimeters 220 millimeters width by 150 millimeters height by 8 millimeters depth
• Weight: 197 grams
• Seller catalogs:
  • Bücher

About this title

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In probability theory and statistics, the variance of a random variable or distribution is the expected, or mean, value of the square of the deviation of that variable from its expected value or mean. Thus the variance is a measure of the amount of variation within the values of that variable, taking account of all possible values and their probabilities or weightings (not just the extremes which give the range). For example, a perfect dice, when thrown, has expected value (1+2+3+4+5+6)/6 = 3.5, expected absolute deviation 1.5 (the mean of the equally likely absolute deviations (3.5−1, 3.5−2, 3.5−3, 4−3.5, 5−3.5, 6−3.5), giving 2.5, 1.5, 0.5, 0.5, 1.5, 2.5, but expected square deviation or variance of 35/12 ≈ 2.9 (the mean of the equally likely squared deviations 1/4, 9/4, and 25/4).