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Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1

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Nội dung chi tiết: Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1

Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1

ElementaryStatisticsA STEP BY STEP APPROACHImportant FormulasChapter 3Data Descriptionvy•Mean tor individual data: J = „n- A'Mean for grouped data: X

Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1 = ——-nStandard deviation for a sample:VliX - AÌ-'__ . iltUX2) - (XAfPur(Shortcut formula)Standard deviation for grouped data:.IV -VJ-V nln 11Range ru

le of thumb: s •- rjrcy,t:Chapter 4Probability and Counting RulesAddition rule 1 (mutually exclusive events):PịA<*lì) HA) I HR)Addition rule 2 (events Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1

mil mutually exclusive):HA or £) = /Ạ.4) + HR) - HA and R)Multiplication rule I (independent events):HA and R) = HA)- HR)Multiplication rule 2 (depen

Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1

dent events):Ạ/1 and/)) Ạ/1) • HR |/f)Conditional probability: HR I AIbHA>Complementary events: HF) I HF)fundamental counting rule: Total number of ou

ElementaryStatisticsA STEP BY STEP APPROACHImportant FormulasChapter 3Data Descriptionvy•Mean tor individual data: J = „n- A'Mean for grouped data: X

Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 1 r al a time IS„*tn - r>!Combination rule: Number of combinations of r objects It!selected from n objects is „c = -—,In - rl!r!

ElementaryStatisticsA STEP BY STEP APPROACHImportant FormulasChapter 3Data Descriptionvy•Mean tor individual data: J = „n- A'Mean for grouped data: X

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