Measurement (Numerical)

Different from 'Pure Numbers'

Ther is always some uncertainty in value

can be expressed as

Absolute Uncertainty

Relative Uncertainty

arising from

Systematic Error

Causes denation of mean from True Value

determines

Accuracy of Measurement

precision of measurement

Increase with Number of Replicate Measurements

Random Error

caused by

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

'noise' Fluotations in Values

results in

Scatter of Repeated Measurement

characterized by

Range of Observed Values

determines