Relative Standard Deviation: The relative standard deviation is a measure of precision, calculated by dividing the standard deviation for a series of measurements by the average measurement.

 

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Relative Standard Deviation: The relative standard deviation is a measure of precision, calculated by dividing the standard deviation for a series of measurements by the average measurement.

Standard Enthalpy Change: A change in enthalpy associated with a reaction or transformation involving substances in their standard states.

Standard English: The more prestigious variety of English described in prescriptivist dictionaries and grammars, taught by instructors, and used for public affairs. Typically the standard version of a languag . . . View Full Definition

Standard Digital Television (SDTV) Resolution: 480i - The picture is 704x480 pixels, sent at 60 interlaced frames per second (30 complete frames per second). 480p - The picture is 704x480 pixels, sent at 60 complete frames per second.

Standard Definition Television (SDTV): SDTV refers to DIGITAL transmissions with 480-line resolution, either interlaced or progressive scanned formats. SDTV offers significant improvement over today's conventional NTSC picture re . . . View Full Definition

Standard Deviation: Standard deviation is a statistical measurement of how far a variable quantity, such as the price of a stock, moves above or below its average value. The wider the range, which means the gre . . . View Full Definition

Standard Enthalpy Of Formation: The change in enthalpy when one mole of compound is formed from its elements in their most stable form and in their standard states.

Standard Enthalpy Of Reaction: A change in enthalpy associated with a reaction involving substances in their standard states.

Standard Hydrogen Electrode: A platinum electrode that runs the half reaction 2 H+(aq, 1M) + 2 e- rightarrow H2(g, 1 atm), chosen as a reference for cell voltages. The electrode potential of the standard hydrogen electr . . . View Full Definition

Standard Industrial Classification (SIC): In statistics, a measure of the possible error in an estimate. Plus or minus 2 standard errors usually provides a 95% confidence interval.