# Error Analysis

Measurement is a process of comparing an unknown quantity with a standard quantity . No measurement can be made with perfect accuracy which results in the occurance of the errors.

There are two types of error,

Where, e = absolute error

Yn= expected value

Xn = measured value

Where, A = yn-xn*100/yn

There are two types of error,

- Absolute error
- Percentage error

#### Absolute error:

Absolute error may be defined as the difference between the variable and measured value of the variable it can be expressed as e=yn-xnWhere, e = absolute error

Yn= expected value

Xn = measured value

#### Percentage error:

Percentage error = absolute error*100/expected errorWhere, A = yn-xn*100/yn

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