An cuibheas
'S e an cuibheas an tomhas as cumanta. Ma dh'iarras tu air cuideigin an cuibheas a lorg, seo an d貌igh a chleachdas iad mar as trice.
B' e toraidhean Kieran:
\(10, 14, 10, 12, 11, 10, 11, 12, 10, 11, 9, 12\)
Airson an cuibheas obrachadh a-mach, cuir-ris na h-脿ireamhan gu l猫ir agus roinn an t-iomlan leis an t-s霉im 脿ireamhan. 'S e an cuibheas san eisimpleir seo:
\(\frac{10+14+10+12+11+10+11+12+10+11+9+12}{12}\)
\(= \frac{132}{12}\)
\(= 11\, tragan\)
Question
Cheannaich saor seachd pacaidean th脿irngean. Bha an 脿ireamh th脿irngean anns gach pacaid mar a ch矛 thu gu h-矛osal:
\(8, 7, 6, 7, 9, 8, 7\)
Obraich a-mach 脿ireamh chuibheasach nan t脿irngean anns gach pacaid. (Thoir do fhreagairt gu d脿 ionad dheicheach.)
\(\text{T脿irngean gu l猫ir} = 8+7+6+7+9+8+7 = 52\)
\(\text{脌ireamh phacaidean} = 7\)
\(\text{Cuibheas} = \frac{52}{7} = 7.43\)
Ag obrachadh a-mach a' chuibheis bho chl脿r-triceid
Seo mar a tha toraidhean d脿ta Kieran ann an cl脿r-triceid.
| 脌ireamh thragan air cl脿r | 脌ireamh chl脿ran (tricead) |
| 9 | 1 |
| 10 | 4 |
| 11 | 3 |
| 12 | 3 |
| 13 | 0 |
| 14 | 1 |
| 脌ireamh thragan air cl脿r | 9 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 1 |
| 脌ireamh thragan air cl脿r | 10 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 4 |
| 脌ireamh thragan air cl脿r | 11 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 3 |
| 脌ireamh thragan air cl脿r | 12 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 3 |
| 脌ireamh thragan air cl脿r | 13 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 0 |
| 脌ireamh thragan air cl脿r | 14 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 1 |
Dh'fhaodamaid a bhith air cuibheas nan toraidhean aige a lorg mar seo.
| 脌ireamh thragan air cl脿r | 脌ireamh chl脿ran (tricead) | Tragan x tricead |
| 9 | 1 | 9 |
| 10 | 4 | 40 |
| 11 | 3 | 33 |
| 12 | 3 | 36 |
| 13 | 0 | 0 |
| 14 | 1 | 14 |
| Iomlan = 12 | Iomlan = 132 |
| 脌ireamh thragan air cl脿r | 9 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 1 |
| Tragan x tricead | 9 |
| 脌ireamh thragan air cl脿r | 10 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 4 |
| Tragan x tricead | 40 |
| 脌ireamh thragan air cl脿r | 11 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 3 |
| Tragan x tricead | 33 |
| 脌ireamh thragan air cl脿r | 12 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 3 |
| Tragan x tricead | 36 |
| 脌ireamh thragan air cl脿r | 13 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 0 |
| Tragan x tricead | 0 |
| 脌ireamh thragan air cl脿r | 14 |
|---|---|
| 脌ireamh chl脿ran (tricead) | 1 |
| Tragan x tricead | 14 |
| 脌ireamh thragan air cl脿r | |
|---|---|
| 脌ireamh chl脿ran (tricead) | Iomlan = 12 |
| Tragan x tricead | Iomlan = 132 |
Bidh sinn an uair sin a' roinn na dh脿 mar seo:
\(Cuibheas = \frac{132}{12} = 11\, tragan\)