Question

Ana estimated the mass of an object to be 54 grams. The actual mass of the object was 45 grams. What was the percent error in Ana’s estimate.

Answer 1

20%

Explanation:

percent error = (estimated value - real value)/(real value) × 100%

percent error = (54 - 45)/(45) × 100%

percent error = 0.2 × 100%

percent error = 20%