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Calculating the Grade Average in Populi
Current Variables
P = possible points for the assignment
G = grade assigned to the assignment
W = assignment weight (%) … treat each as a whole number and not as a % … ie: 5% = 5 or 10% = 10 or 7.5% =7.5 etc.
To avoid any confusion ">=" means greater than or equal to
New Variables
a) WG = weighted grade = G/P x W … calculate for all assignments where G>=0 and P >0 (this last stipulation avoids division by 0)
Also IF P=0 then set WG=0
Example …
For a grade of 9.0 out of a possible 10 weighted @ 5% = 9.0 / 10 x 5 = 4.5
For a grade of 9.0 out of a possible 10 weighted @ 10% = 9.0 / 10 x 10 = 9.0
For a grade of 0 out of a possible 10 weighted @ 10% = 0 / 10 x 10 = 0.0
Ignore unassigned grades (G=blanks)
b) TWG – total of weighted grades … sum all WG where G>=0 and P>0
Example …
5 assignments, 4 weighted at 5%, one weighted at 10%) … 4.5+4.5+4.5+4.5+ 9.0= 27)
Ignore unassigned grades (G=blanks)
c) TPA = total possible points where G>=0 … ie 5+5+5+5+10 = 30
d) GA = grade average =( (TWG / TPA) x 100) … example (27/30) x 100 = 90%
This GA will always be right regardless of the number of assignments graded or the grades assigned, including a grade of 0.
3. General Edits
a) One can edit an assignment , possible points etc ... but one cannot edit the weighted %