Question

the uncertainty in the measurement 1.268 g is?

1) 0.1g

2)0.001g

3)0.01g

4)not enough info given

5) 0.0001g

Answer 1

The best answer is

4)not enough info given

You should always include the sensitivity of the measuring device/apparatus.

Or give a rule for significant figures to keep if using operations

if we choose 1,2,3, or 5, this will be guessing, since we do NOT know if this is 100% reliable

Ifyou were using a plastic ruler, it is likely you will only keep 0.1

If you were using a very precise appaatus, pobably you will keep 0.0001

Therefore, impossible to state with no other information