Math and Arithmetic

Statistics

Percentages, Fractions, and Decimal Values

# Percent error formula?

345

## Answer

###### Wiki User

###### 06/06/2012

Divide the calculated or estimated error by the magnitude of the measurement. Take the absolute value of the result, that is, if it is negative, convert to positive. This would make the percent error = | error / measurement |.

## Related Questions

###### Asked in Math and Arithmetic

### What is the fractional error formula?

What is the formula for percent fractional error? (Physics)

Read More

###### Asked in Math and Arithmetic, Statistics, Percentages, Fractions, and Decimal Values

### What is the formula for percent error?

The formula of percent error is
percent error= Your value/accepted value x 100
------------
The definition of error is: difference between the accepted true
value and the measured value of a quantity or parameter. But this
is the absolute error.
The relative (percent error) is:
(measured value - accepted true value) . 100/accepted true
value
This value is exprssed as a percentage - %.
...

Read More

###### Asked in Math and Arithmetic, Statistics, Percentages, Fractions, and Decimal Values

### Formula for percent error?

Percent Error =
{Absolute value (Experimental value - Theoretical Value) /
Theoretical Value }*100
...

Read More

###### Asked in Math and Arithmetic

### Percent error of full scale calculation formula?

(absolute error)/(full scale deflection) x 100 = % error

Read More

###### Asked in Math and Arithmetic, Chemistry

### What is the percent error formula for mass of pennies?

For any percent error formula:
100 x (Experimental Value - Theoretical Value) / Theoretical
Value
Take the absolute value of this (make it positive) , and give it
a percent sign.
Example: The listed mass was 1 gram, and you found it to be .9
grams
100(0.9-1)= -10
-10/1 =-10
-10 becomes 10
10% error
You will NEVER have a negative percent error, and its a good
idea to write "error" after the percent sign.
...

Read More

###### Asked in Math and Arithmetic

### What is the percent error calculation used to determine?

When you calculate results that are aiming for known
values, the percent error formula is useful tool for
determining the precision of your calculations. The formula is
given by: The experimental value is your calculated value, and the
theoretical value is your known value.
...

Read More

###### Asked in Science, Math and Arithmetic, Numerical Analysis and Simulation

### How do you calculate percentage error for density of pennies?

Percent error refers to the percentage difference between a
measured value and an accepted value. To calculate the percentage
error for density of pennies, the formula is given as: percent
error = [(measured value - accepted value) / accepted value] x
100.
...

Read More

###### Asked in The Difference Between

### What is the difference between low percent error and high percent error?

The difference between low percent error and high percent error
is one is low and the other is high
...

Read More

###### Asked in Math and Arithmetic, Statistics

### When an error of 1 percent is made in the length of a square error is?

The error in its area is then 2 percent....

Read More

###### Asked in Math and Arithmetic, Chemistry, Statistics, Percentages, Fractions, and Decimal Values

### What is the percent error formula?

Percent Error is the difference between the true value and the
estimate divided by the true value and the result is multiplied by
100 to make it a percentage. The percent error obviously can be
positive or negative; however, some prefer taking the absolute
value of the difference.
The formula is the absolute value of the experimental value
(minus) the theoretical value divided by theoretical value times
100.
% error = (|Your Result - Accepted Value| / Accepted Value) x
100
...

Read More

###### Asked in Business and Industry

### A common formula error?

There are two common formula errors. One error is that the
formula is read wrong. The other error is that the formula is
written down incorrectly.
...

Read More

###### Asked in Molecular Mass

### What is the percent of error in evaluating the molecular mass of a compound if the experimental value was 105.2 amu and the known value was 107.5 amu?

The formula for percent error is |experimental value-accepted
value|/accepted value.
The lines stand for absolute value. They are there to prevent a
negative percent error, seeing as that is not possible, and they
have the same effect on the order of operations as a pair of
parenthesis.
ITS 2.1%
...

Read More

###### Asked in Math and Arithmetic, Statistics

### What is a high percent error mean?

high percent error is the absolute value of something that is
multiplied

Read More

###### Asked in Math and Arithmetic

### What is the percent error of the measurement 4 cm?

Percent error is calculated by the measured value and the
acceped value. For example, if you measure a piece of paper and
decide it is 8.45in long, that is your measured value. The package
says it is 8.5in long, so it is the accepted value. The formula for
percent error is |measured value - accepted value| divided by
accepted value ALL times 100.
...

Read More

###### Asked in Microsoft Excel

### Where is the formula error button in Excel 2007?

There is no formula error button in Excel. However, there is an
Error Checking button on the Formulas ribbon in the Formula
Auditing section in Excel 2007.
...

Read More

###### Asked in Percentages, Fractions, and Decimal Values

### Can the answer of a percent error problem be 300?

Yes, your percent error can be over 100%. This means that
somewhere during your experiment you made a big error.
...

Read More

###### Asked in Math and Arithmetic

### What is percent error if you use a value of 3.14 for 3.14?

If you mean percent error of 3.14 versus pi, which is
3.14159..., the error is only 0.05%
...

Read More

###### Asked in Math and Arithmetic, Statistics

### A high percent error refers to?

A high percent error indicates that a certain value is very far
from the accepted value. Percent error is the comparison of an
estimated value to an exact one.
...

Read More

###### Asked in Math and Arithmetic, Physics, Statistics, Percentages, Fractions, and Decimal Values

### How do you show percent error?

Percent error = (actual value - theoretical value) / theoretical
value * 100%
...

Read More

###### Asked in Percentages, Fractions, and Decimal Values

### When will use percent difference and percent error?

When Percent Equal 100%

Read More

###### Asked in The Difference Between, Percentages, Fractions, and Decimal Values

### Is percent difference and percent error the same?

No; they are not the same.

Read More

###### Asked in Math and Arithmetic, Statistics, Percentages, Fractions, and Decimal Values

### Can percent error be negative?

Sometimes you will take the absolute value of the percent error
because your estimated number could be less than the theoretical,
meaning the calculation is negative. But an absolute value is
always positive. A percent error can be left as a negative though,
and this would be perfectly acceptable (or even preferred)
depending on what you're doing.
Answer:
In the sciences, a negative percent error indicates a low result.
If you have a 0% error, then your observed (lab) result was exactly
the same...

Read More

###### Asked in Math and Arithmetic, Chemistry, Proofs

### What is the formula for error?

Error = Observed value - True Value.

Read More

###### Asked in Physics, DIY Projects

### How do you compute for the percentage error of the density of a solid?

The density percentage error is computed through this formula;
percentage error equals in the observed value minus the accepted
value over accepted value times 100 percent. Density is the
quantity of mass of a substance measure per unit of volume through
the formula density is equal to the quotient of mass and
volume.
...

Read More