Question

Un elev a masurat lungimea unei carti si a obtinut urmatoarele valori: 310 mm, 300mm, 295mm, 285 mm, 315mm. Calculati valoarea medie si erorile si eroarea medie.

Answer 1

Vm(valoarea medie) =310mm+300mm+295mm+285mm+315mm(supra 4)=1505 supra 4=752,5 supra 2=376,25mm(eroare) Delta(un triunghi) A1=Vm-A1=376,25mm-310mm=66,25mm Delta A2=Vm-A2=376,25mm-300mm=76,25mm Delta A3=Vm-A3=376,25mm-295mm=81,25mm Delta A4=Vm-A4=376,25mm-285mm=91,25mm Delta A5=Vm-A5=376,25mm-315mm=61,25mm