Calculator: Fufuzani Zochepa Zomwe Mukufufuza

Calculator Paintaneti Kuti Muwerenge Kukula Koyeserera Pa Kafukufuku

Kupanga kafukufuku ndikuwonetsetsa kuti muli ndi yankho lovomerezeka lomwe mungakhazikitse zisankho zanu pamafunika ukatswiri wambiri. Choyamba, muyenera kuwonetsetsa kuti mafunso anu amafunsidwa munjira yosakondera kuyankha kwanu. Chachiwiri, muyenera kuwonetsetsa kuti mufufuza anthu okwanira kuti apeze zotsatira zowerengera.

Simusowa kufunsa munthu aliyense, izi zikhala zotangwanitsa komanso zotchipa. Makampani ochita kafukufuku wamsika amayesetsa kukhala ndi chidaliro chambiri, malire olakwika pomwe amafikira ochepera omwe amafunikira. Izi zimadziwika kuti your kukula kwachitsanzo. Ndinu zitsanzo chiwerengero china cha anthu onse omwe angapeze zotsatira zomwe zimapereka mulingo wa chidaliro kutsimikizira zotsatira. Pogwiritsa ntchito njira yovomerezeka kwambiri, mutha kudziwa kuti ndi yolondola kukula kwachitsanzo zomwe ziziimira anthu onse.



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Fomula Yotsimikizira Kukula Kwachitsanzo

Njira yodziwira kukula kocheperako koyenera kwa anthu omwe apatsidwa ndi iyi:

S = \ frac {\ frac {z ^ 2 \ times p \ kumanzere (1-p \ kumanja)} {e ^ 2}} {1+ \ kumanzere (\ frac {z ^ 2 \ times p \ kumanzere (1- p \ kumanja)} {e ^ 2N} \ kumanja)}

kumene:

  • S = Kukula kocheperako koyenera kuti mufufuze malinga ndi zomwe mwalandira.
  • N = Chiwerengero chonse cha anthu. Uku ndiko kukula kwa gawo kapena kuchuluka kwa anthu komwe mukufuna kuwunika.
  • e = Malire Olakwika. Nthawi iliyonse mukayesa kuchuluka kwa anthu, padzakhala malire olakwika pazotsatira.
  • z = Mungakhale otsimikiza bwanji kuti anthu angasankhe yankho pamtundu wina. Chiyembekezo chodzidalira chimamasulira ku z-mphambu, kuchuluka kwa zolakwika zomwe gawo lomwe lapatsidwa silili kutali ndi tanthauzo.
  • p = Kupatuka kokhazikika (pamenepa ndi 0.5%)

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