The greatest feasible error calculator below will uncover the error for you no issue how huge the number you get in is. Enter a number complied with by the unit.

You are watching: Find the greatest possible error for the measurement 0.991 g

However, leaving a space between the number and also the unit. This calculator will aid you understand the concept.

                     Greatest possible error

What is the greatest feasible error (GPE)? No measure up is perfect. At any time you are doing some measurement, over there is a great likelihood that it is no exact.

Definition: The greatest possible error in a measure is half of the measuring unit.

For example, what is the greatest possible error for 8 cm?

8 cm was measured come the nearest 1 cm, therefore the measure up unit is 1 cm.  The greatest feasible error is 0.5 times 1 or 0.5 cm.

What is the GPE for 4.2 inches?

This time 4.2 to be measured to the nearest tenth of an customs or 0.1 inch, therefore the measure unit is 0.1. The GPE is 0.5 times 0.1 inch or 0.05 inch.

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Real life application of the greatest possible error

You measure up a garden that is rectangular as shown in the diagram. Uncover the minimum and also maximum area that the garden. 


The measurements were made come the nearest foot, so the greatest possible error is 0.5 foot.

The broad of the garden can be as little as 27 - 0.5 = 26.5 or as huge as 27 + 0.5 = 27.5

The size of the garden can be as small as 18 - 0.5 = 17.5 or as big as 18 + 0.5 = 18.5

The minimum area = 26.5 × 17.5 = 463.75 square feetThe best area = 27.5 × 18.5 = 508.75 square feet

Common failure in math

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