What time is it ? ... at 14:20
Two clocks with equal precisions:
Clock 1: it is 14:19 with 5 mn precision
Clock 2: it is 14:23 with 5 mn precision
Best estimate: it is 14:21 with 3.5 mn (\(\sim 5/\sqrt 2\)) precision
Two clocks with inequal precisions:
Clock 1: it is 14:19 with 2 mn precision
Clock 2: it is 14:23 with 5 mn precision
Best estimate: it is 14:19:32 with 1.85 mn (\(\sim 10/\sqrt {29}\)) precision
Which method to perform this estimation?