Percentage Error/Examples/Arbitrary Example 1

Examples of Percentage Error

Let the true value of a population mean be $45$.

Let the estimate of that population mean, based on a sample, be $47 \cdotp 2$.

Then the percentage error of this estimate is:

$\dfrac {47 \cdotp 2 - 45} {45} \times 100 = 4 \cdotp 9 \%$

to $2$ significant figures.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): percentage error
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): percentage error