Question

Which of the following sets of measurements is the MOST precise?

A. 1 m, 2 m, 3 m, 4 m
B. 2.9 m, 3.0 m, 3.1 m, 3.2 m
C. 10 m, 20 m, 30 m, 40 m
D. 100 m, 200 m, 300 m, 400 m

a) A
b) B
c) C
d) D

Answer 1

The most precise set of measurements is option B: 2.9 m, 3.0 m, 3.1 m, 3.2 m.

Step-by-step explanation:

The most precise set of measurements is option B: 2.9 m, 3.0 m, 3.1 m, 3.2 m. Precision refers to the level of detail in the measurements.

In this case, the measurements have decimal values that are accurate to the tenths place (one decimal digit after the decimal point). The other options have whole number values, which are less precise.

For example, option A has measurements accurate to the unit (whole number), option C has measurements accurate to the tens place, and option D has measurements accurate to the hundreds place.