Find the error intervals for the following truncated numbers

Question 1:

0.0003 (1 s.f.)
0.0003≤x<0.0004

Question 2:

0.58 (2 s.f.)
0.58≤x<0.59

Question 3:

0.16 (2 d.p.)
0.16≤x<0.17

Question 4:

1.2 (1 d.p.)
1.2≤x<1.3