Question

Diego measured the length of a pencil to be 20 cm. The actual length of the pencil is 23 cm. Select the percent error for Diego’s measurement?

Answer 1

Answer: In this case, the experimental value is 20 cm (the length that Diego measured) and the theoretical value is 23 cm (the actual length of the pencil). Plugging these values into the formula, we get:

percent error = (|20 - 23| / 23) x 100 = (3 / 23) x 100 = 0.13 x 100 = 13%

So the percent error for Diego's measurement is 13%.

Explanation: