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Finding the Upper Bound and Lower Bound

With rounding, you often get asked to find two values. These are the Upper Bound (UB) and the Lower Bound (LB) and when these 2 values are written in the form of an inequality, we refer to them as ERROR INTERVALS.

These two values can easily be worked out using a simple 3-step approach.

Example 1 (accuracy = 1m)

Example 2 (accuracy = 10cm)

Example 3 (accuracy = 2 decimal places)

Example 4 (accuracy = 2 significant figures)

Example 5 (complex example)

Points to consider before solving this problem…

Now we can work out the Maximum Speed