Macy measured the mass of a 69.3 g mouse at 70.0 g.

Eli measured the mass of a 3867 kg elephant at 3900 kilograms.

Macy's error was 70-69.3 = 0.7 g-- about half the mass of a paperclip.

A. What was Eli's error?

B. Name an object of this approximate mass.

C. Accuracy can be defined in terms of percent error. Who was more accurate, Macy or Eli? Justify your answer with mathematics.

Question

Macy measured the mass of a 69.3 g mouse at 70.0 g.

Eli measured the mass of a 3867 kg elephant at 3900 kilograms.

Macy's error was 70-69.3 = 0.7 g-- about half the mass of a paperclip.

 

A. What was Eli's error?

 

B. Name an object of this approximate mass.

 

C. Accuracy can be defined in terms of percent error. Who was more accurate, Macy or Eli? Justify your answer with mathematics.

anonymous · Answer

A. Subtract Eli's measurement from 3900 kilograms.
C. Forumula for percent error is:

Error/Real mass * 100%, whomever is smaller is more accurate.

thadds2003 · Answer

And b? or you dont know? @Zelda ?