Bluman elementary statistics step by step approach 8th txtbk

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Nội dung chi tiết: Bluman elementary statistics step by step approach 8th txtbk

Bluman elementary statistics step by step approach 8th txtbk

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

Bluman elementary statistics step by step approach 8th txtbk ——-nStandard deviation for a sample:VliX - AÌ-'__ . iltUX2) - (XAfPur(Shortcut formula)Standard deviation for grouped data:.IV -VJ-V nln 11Range rule

of thumb: s •- rjrcy,t:Chapter 4Probability and Counting RulesAddition rule 1 (mutually exclusive events):PịA<*lì) HA) I HR)Addition rule 2 (events m Bluman elementary statistics step by step approach 8th txtbk

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

Bluman elementary statistics step by step approach 8th txtbk

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

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

Bluman elementary statistics step by step approach 8th txtbk 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