Precision v accuracy - Study guides, Class notes & Summaries

CHEM 120 Exam 1 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass Celsius formula - Answer -C= (F-32)/1.8 Kelvin formula - Answer -K=C+273.15 density formula and units - Answer -D (g/mL, g/L, Kg/m^3)= M (kg) / V (m^3, cm^3, L , mL) Precision - Answer -a measure of how close a series of measurements are to one another Accuracy - Answer -how close a measurement is to the true value Law of Conservation of Energy - Answer -Energy cannot be created or destroyed kinetic...

CLT Exam 1 Questions and Answers Already Passed Which of the following statements is true? At minimum two levels of control should be tested daily for each test run in the laboratory. When comparing an instrument to its peer group, which statistic provides the most useful information regrind its ACCURACY SDI- standard deviation index When comparing an instrument to its peer group, which statistic provides the most useful description of OVERALL IMPRECISION CVR 2(2s) Detects systematic error 1...

Protons positively charged particles Neutrons neutrally charged particles Electrons negatively charged particles Cations positively charged ions Anions negatively charged ions Mass Number sum of number of protons and neutrons in nucleus of an atom Isotope two or more forms of the same element (same number of protons) whose atoms differ in number of neutrons, and in mass, with the same atomic number and different mass number. Quantitative information such as numerical data Qualita...

UF CHM2045L Lab Exam Questions And Answers Graded A+ 2024. Accuracy - correct answer. A description of how close a measurement is to the true value of the quantity measured. Precision - correct answer. a measure of how close a series of measurements are to one another sig figs for addition and subtraction - correct answer. the result has the same number of decimal places as the measurement with the fewest decimal places sig figs for multiplication and divi...

transducer - devices that convert information in nonelectrical domains to information in electrical domains and the converse detector - mechanical, electrical, or chemical device that identifies, records, or indicates a change in one of the variables in its environment, such as pressure, temperature, electrical charge, electromagnetic radiation, nuclear radiation, particulates, or molecules sensor - the class of analytical devices that are capable of monitoring specific chemical species co...

ILTS 305 Elementary Education Exam: Comprehensive Study Guide for Language, Math, Science, and More | the set of skills needed to find, retrieve, analyze, and use information - Information Literacy vowel - A syllable at its minimum requires a three 4-line stanzas followed by a two-line couplet; rhymes are contained within stanza - Sonnett Dig deep - MLA citations for web address. To find the author you must... sentence structure and word order - Syntax involves recognition and produc...

Law of Conservation of Mass Matter is not created nor destroyed in any chemical or physical change E= mc^2 Energy (e)= mass(m) x speed of light (c) -basis is the law of conservation of mass and energy significant figures (sig figs) all the digits that are known in a measurement, plus the last digit that is estimated Kelvin scale theoretical temperature that is the lowest called absolute zero absolute zero The temperature at which no more energy can be removed fr...

Attributable risk - correct answer Rate of disease in exposed individuals that can be attributed to the exposure. Or the proportion of all cases that can be attributed to a particular exposure. Adjusted rate - correct answer Effects of differences in composition of pops being compared have been minimized by statistical methods. ex: regression analysis and strandardization -often used on rates or relative risks Ecological Fallacy - correct answer Bias that may occur because...

average speed = - correct answer distance / time v = d / t Standard Unit for mass (m) - correct answer kilogram (kg) Standard Unit for distance (d) or displacement (s) - correct answer metre (m) Standard Unit for speed (s) or velocity (v) - correct answer metre/second (m/s) Standard Unit for acceleration (a) - correct answer ...

average speed = - correct answer distance / time v = d / t Standard Unit for mass (m) - correct answer kilogram (kg) Standard Unit for distance (d) or displacement (s) - correct answer metre (m) Standard Unit for speed (s) or velocity (v) - correct answer metre/second (m/s) Standard Unit for a...