Miss C.M
Flashcards by , created about 6 years ago

3rd year 2013 1st SEM Flashcards on IOP2601, created by Miss C.M on 05/27/2013.

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Miss C.M
Created by Miss C.M about 6 years ago
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Question Answer
standard deviation Sx=Sx2 square rooted
slope / b value NΣXY -ΣXΣY /(NΣX2-(ΣX)2)(NΣY2-(ΣY)2) division part square rooted
slope / b value NΣXY -(ΣX)(ΣY) /(NΣX2-(ΣX)2
intercept / a value a=Y - bX
regression Y =bX+ a
z score z=X-u/o
f test SS total =Σx2 -(Σx)2 / N SS group = nΣ(Xj-X...)2 SS error = SS total - SS group dftotal=N-1..dfgroup=k-1.. dferror=k(n-1) MSgroup=SStotal/dfgroup MSerror=SSerror/dferror F=MSgroup/MSerror
chisquare df =(R-1)(C-1)
midpoint of class interval RLL +(RUL- RLL) /2
Percentile Rank % below+ score-RLL/class interv (interv%)
Score of p RLL+PR-%below /interv% (interv width)
Mode Mo= most frequent occurring score
Median location N+1 /2
Mean/ Average X=ΣX/N Y=ΣY/N
Range highest score - lowest score
Variance Sx2= (Σx2 -(Σx)2 /N /(N - 1)