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Check theΒ formula sheet of Statistics

Chapter 15 Class 11 Statistics Formula Sheet - Miscellaneous
Chapter 15 Class 11 Statistics Formula Sheet - Part 2
Chapter 15 Class 11 Statistics Formula Sheet - Part 3
Chapter 15 Class 11 Statistics Formula Sheet - Part 4

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Transcript

"Chapter 15 Class 11" "Statistics Sheet " "by" teachoo.com Ungrouped Data 2, 2, 5, 3, 4, 8, 9, 7, 6, 6, 3, 1 Mean 1/N βˆ‘24_(i = 1)^nβ–’x_i Median N is even Median = ((𝑁)^π‘‘β„Ž π‘‘π‘’π‘Ÿπ‘š + (𝑁/2 +1)^π‘‘β„Ž π‘‘π‘’π‘Ÿπ‘š)/2 N is odd Median =((𝑁 + 1)/2)^π‘‘β„Ž π‘‘π‘’π‘Ÿπ‘š M.D (𝒙 Μ…) 1/N βˆ‘_(i = 1)^nβ–’γ€–|x_iβˆ’π’™ Μ…|γ€— 𝒙 Μ… = Mean M.D (𝐌) 1/𝑁 βˆ‘_(𝑖 = 1)^𝑛▒〖|π‘₯_π‘–βˆ’M|γ€— 𝐌 = Median S.D (𝝈) √(1/𝑁 βˆ‘_(𝑖 = 1)^𝑛▒(π‘₯_π‘–βˆ’π‘₯ Μ… )^2 ) π‘₯ Μ… = Mean Shortcut formula of S.D for grouped data : 𝝈=h/N √(𝑁 βˆ‘_(𝑖 = 1)^𝑛▒〖𝑓_π‘–βˆ’π‘¦_𝑖^( 2) γ€—βˆ’(βˆ‘_(𝑖 = 1)^𝑛▒〖𝑓_π‘–βˆ’π‘¦_𝑖^( 2) γ€—) ) 𝑦_𝑖 = (π‘₯_𝑖 βˆ’ 𝐴)/β„Ž, A = Assumed mean

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