Question

Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.

Answer 1

ABSOLUTE ERROR

Danielle: 40 - 38 = 2

Iris: 34 - 38 = -4

HB: 41 - 38 = 3

PERCENT ERROR

Danielle: (2/38)(100%) = 5.3%

Iris: (-4/38)(100%) = -10.5%

HB: (3/38)(100%) = 7.9%