Kategoriak: All - precision - accuracy - uncertainty - error

arabera Nora Sheqin 11 years ago

315

Measurement (Numerical)

When dealing with measurements, it is important to recognize that they differ from pure numbers due to inherent uncertainties. These uncertainties can arise from systematic errors, which cause deviations from the true value and directly impact the accuracy of the measurement.

Measurement (Numerical)

Measurement (Numerical)

Different from 'Pure Numbers'

Ther is always some uncertainty in value

arising from
Random Error

results in

Scatter of Repeated Measurement

characterized by

Range of Observed Values

caused by

'noise' Fluotations in Values

Limit on observing a Continuous Range of Values on a Measuring Scale having finite increment

Systematic Error

Causes denation of mean from True Value

determines

Accuracy of Measurement

precision of measurement

Increase with Number of Replicate Measurements

can be expressed as
Relative Uncertainty
Absolute Uncertainty