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Category: Set Theory

Mean-It-is-found-by-adding-all-the-values-of-the-observation-and-dividing-it-by-the-total-number-of-observations-It-is-denoted-by-x-So-x-i-1-n-x-i-n-For-an-ungrouped-frequency-

Question Number 122436 by sahiljakhar04 last updated on 17/Nov/20 Mean:Itisfoundbyaddingallthevaluesoftheobservationanddividingitbythetotalnumberofobservations.Itisdenotedbyx¯.$$\mathrm{So},\:\bar {{x}}\:=\:\frac{\underset{{i}=\mathrm{1}} {\overset{{n}} {\sum}}{x}_{{i}} }{{n}}.\:\mathrm{For}\:\mathrm{an}\:\boldsymbol{\mathrm{ungrouped}}\:\boldsymbol{\mathrm{frequency}}\:\boldsymbol{\mathrm{distribution}},\:\mathrm{it}\:\mathrm{is}\:\bar {\boldsymbol{{x}}}\:=\:\frac{\underset{\boldsymbol{{i}}\:=\:\mathrm{1}} {\overset{\boldsymbol{{n}}} {\sum}}\boldsymbol{{f}}_{\boldsymbol{{i}}} \boldsymbol{{x}}_{\boldsymbol{{i}}} }{\underset{\boldsymbol{{i}}\:=\:\mathrm{1}} {\overset{\boldsymbol{{n}}}…

In-an-exam-36-of-people-failed-in-physics-and-49-failed-in-maths-and-15-failed-in-both-subject-If-the-total-number-of-student-that-passed-physics-only-is-680-find-the-total-number-of-students-t

Question Number 122426 by Lordose last updated on 16/Nov/20 Inanexam36%ofpeoplefailedinphysicsand49%failedinmathsand15%failedinbothsubject.Ifthetotalnumberofstudentthatpassedphysicsonlyis680findthetotalnumberofstudentsthatappearedintheexam. Terms…