The deviation of the measured value from the actual value is known as _____________.

Question

Options

• ABias
• BLinearity
• CRepeatability
• DMovement

• A
  72% (33)
• B
  9% (4)
• C
  4% (2)
• D
  15% (7)

Explanation

Bias (A) is the systematic deviation between a measured value and the true/actual value - it represents a consistent offset or error in one direction, making it the precise definition asked here.

• Linearity (B) refers to how consistently a measuring instrument performs across its full range of measurement, not the deviation from actual value.
• Repeatability (C) describes how consistently an instrument gives the same result when measuring the same thing multiple times under the same conditions - it's about consistency, not accuracy.
• Movement (D) is not a standard measurement error term; it may refer to mechanical motion in instruments but doesn't describe deviation from actual value.

Memory tip: Think of bias like a biased person - they always lean in one direction away from the truth. In measurement, bias is that persistent "lean" away from the actual value.

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