Na'urar lissafin kuskuren kashi (percent error)
Kuskuren kashi tsakanin ƙimar da aka auna da ainihin ƙima, da cikakken kuskure (absolute error) da bambancin kashi.
Game da Na'urar lissafin kuskuren kashi (percent error)
Kuskuren kashi tsakanin ƙimar da aka auna da ainihin ƙima, da cikakken kuskure (absolute error) da bambancin kashi.
Ɓangare ne na sashen “Lissafi” na SmartCalcy. Yana aiki a burauzar ku ba tare da asusu ba, yana amfani da kuɗinku da ma'aunanku (canza su a saman shafin), kuma yana ba da ƙiyasi don bayani kawai, don haka duba jagorar hukuma kafin ku dogara da sakamako.
Yadda ake amfani da Na'urar lissafin kuskuren kashi (percent error)
Abin da yake lissafawa da lokacin amfani da shi
Yana kwatanta ƙimar da aka auna ko aka ƙiyasta da ƙimar gaskiya ko wadda aka yarda da ita kuma yana bayyana gibin a matsayin kashi. Ana amfani da shi a ɗakunan gwaje-gwajen kimiyya, binciken injiniya da hasashe.
Yadda ake amfani da shi, mataki-mataki
- Shigar da ƙimar da kuka auna.
- Shigar da ƙimar gaskiya ko wadda aka yarda da ita.
- Karanta kashin kuskure, cikakken kuskure (absolute error) da kuskure mai alama (signed error).
Ma'anar kowace shigarwa
- Measured Ƙima – The experimental, observed ko estimated Sakamako.
- True Ƙima – The theoretical ko accepted Ƙima. It cannot be zero.
Yadda ake karanta sakamako
- Kashi Kuskure – The size of the error as a percentage of the true value.
- Signed Kuskure – Positive if you measured too high, negative if too low.
- Kashi difference – Compares two values with neither one treated as correct.
Dabarar lissafi
Percent error = |measured − true| ÷ |true| × 100. Percent difference = |a − b| ÷ ((|a| + |b|) ÷ 2) × 100.
Misali da aka warware
A student measures gravitational acceleration as 9.6 m/s² when the accepted value is 9.81. The absolute error is 0.21, so the percent error is 0.21 ÷ 9.81 × 100 = 2.141%, and the signed error is −2.141% because the measurement is low.
Zato da iyakoki
- The true value shi ne known da non-zero.
- Raka'a must match.
Kurakuran da aka saba yi
- Dividing by the measured Ƙima instead na the true Ƙima.
- Using Kashi Kuskure when there shi ne no accepted Ƙima.
Tambayoyin da ake yawan yi
Shin kashin kuskure zai iya zama mara kyau (negative)?
Ma'anar da aka saba tana amfani da cikakkiyar ƙima (absolute value), don haka tabbatacce ne. Kuskure mai alama yana nuna alƙibla.
Idan ƙimar gaskiya sifili ce fa?
Kashin kuskure ba shi da ma'ana. Yi amfani da absolute error maimakon haka.
Kayan aiki masu alaƙa
Cikakkun bayanai
- Absolute Kuskure
- 0.21
- Signed Kuskure
- -2.141%measured Ƙima shi ne below the true Ƙima
- Kashi difference
- 2.164%relative zuwa the average na the two Ƙimomi