Ríomh meánphointe grád (GPA).
Ríomhtar an GPA mar mheán ualaithe de na gráid, nuair is é an meáchan an líon creidmheasa / uaireanta agus tógtar an grád uimhriúil ón tábla GPA.
Tá an GPA cothrom le suim táirge an mheáchain uaireanta creidmheasa (w) níos mó ná an grád (g):
GPA = w 1 × g 1 + w 2 × g 2 + w 3 × g 3 + ... + w n × g n
Tá meáchan na n-uaireanta creidmheasa (w i ) cothrom le huaireanta creidmheasa an ranga arna roinnt ar shuim uaireanta creidmheasa na n-aicmí go léir:
w i = c i / ( c 1 + c 2 + c 3 + ... + c n )
| Grád | Grád Céatadáin |
GPA |
|---|---|---|
| A | 94-100 | 4.0 |
| A- | 90-93 | 3.7 |
| B + | 87-89 | 3.3 |
| B | 84-86 | 3.0 |
| B- | 80-83 | 2.7 |
| C + | 77-79 | 2.3 |
| C | 74-76 | 2.0 |
| C- | 70-73 | 1.7 |
| D + | 67-69 | 1.3 |
| D | 64-66 | 1.0 |
| D- | 60-63 | 0.7 |
| F | 0-65 | 0 |
Rang 2 chreidmheas le grád A.
Rang 1 chreidmheas le grád C.
Rang 1 chreidmheas le grád C.
suim chreidmheasanna = 2 + 1 + 1 = 4
w1 = 2/4 = 0.5
w2 = 1/4 = 0.25
w3 = 1/4 = 0.25
g1 = 4
g2 = 2
g3 = 2
GPA = w 1 × g 1 + w 2 × g 2 + w 3 × g 3 = 0.5 × 4 + 0.25 × 2 + 0.25 × 2 = 3
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