THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Absolute and relative error
Which measurement is relatively tighter?
Length A is 2.00 m ± 0.50 mm. Length B is 0.50 m ± 0.25 mm. Both ± values are bounds.
Find the ratio of A’s relative bound to B’s relative bound.
Organize the givens & assumptions
- A = 2.00 m; bound 0.50 mm
- B = 0.50 m; bound 0.25 mm
Use magnitudes of the nonzero central readings. Do not interpret bounds as standard deviations.
- A
- B
- C
- D
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