Unformatted text preview: 0.002364 (±0.000003)/[0.02500 ((±0.00005), a calculator gives 0.09456 with a standard deviation of 0.00022. Express the result with proper sig figs. The first uncertain digit in the calculated standard deviation occurs in the fourth decimal place making the fourth decimal place in the answer the last significant figure. The result is then 0.0946 ± 0.0002. (Skoog, Holler & Crouch, Principles of Instrumental Analysis, 6th, Thomson Brooks/Cole, Canada, 2007, 982) See additional examples on the next pages....
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- Summer '11
- Standard Deviation, crouch, uncertain digit