Question

Which of the following measurements has the greatest precision?
a.
100
b.
100.0
c.
100.00
d.
1


Please select the best answer from the choices provided

A
B
C
D

Answer 1

C

100.00 has the greatest precision — it shows five significant figures (more decimal places → greater precision) whereas 100 (1 sig fig), 100.0 (4 sig figs), and 1 (1 sig fig) are less precise.