Accuracy vs precision - Study guides, Class notes & Summaries

Honors Chemistry Final Exam Quizlet Guaranteed A+ Atom ️The basic unit of a chemical element. Molecule ️Two or more atoms held together by covalent bonds Physical change ️A change of matter from one phase to another without a change in chemical properties (melting, freezing, boiling, condensing, dissolving) Phase change ️A change from one state (solid or liquid or gas) to another without a change in chemical composition Chemical change ️A change that produces matter with ...

Chemistry 101 Latest Exam With Verified Answers 2024|2025 Strong Acids Correct Answer: undergo complete ionization: HI HBr HCl HNO₃ HClO₃ HClO₄ H₂SO₄ Strong Bases Correct Answer: do not undergo complete ionization: KOH NaOH LiOH CsOH RbOH Ba(OH)₂ Ca(OH)₂ Sr(OH)₂ Strong Electrolytes Correct Answer: conduct electricity and undergo complete dissociation: HCl HNO₃ HClO₄ H₂SO₄ NaOH Ba(OH)₂ Weak Electrolytes Correct Answer: conduct some electr...

What is considered normal variability? correct answer: single results within 2 SDs (= within 95% confidence interval) Two types of statistical control charts correct answer: X-bar- continuous variables (quantitative results, TAT), allows to determine upper and lower control limits. p-chart- for binary parameters (e.g. yes/no responses when notification about critical values was issued). Calculation of upper and lower control limits for X-bar correct answer: Lower control limit = m - 3S...

Chem 420 Exam Questions And Answers (Verified And Updated) Three types of electrical domains? - answerAnalog Signals - magnitude of voltage, current, charge, or power; continuous in both amplitude and time Time-domain Signals - time relationship of signal fluctuations; frequency, pulse width, phase Digital Info - Data encoded in discrete levels; great accuracy and precision Where does noise come from? (2 types) - answerChemical noise: temperature, pressure, humidity, fumes, etc Instrumen...

Vector Data - Answer best for discrete data (points, lines) are linked to attribute tables Raster Data - Answer Raster breaks map area into small squares known as pixels. A single numeric value is stored in each cell, such as elevation. Understanding of scale, including large-scale vs. small scale - Answer Map scale ratio of distance on the map to distance on the ground Small scale Less detaill version of objects Large scale= more detailed versions GIS can represent at any scal...

physical vs. chemical change - Answer-physical- does not change the substance. change in matter but nor chemical composition chemical- substance is changed. energy is absorbed or released. one or more substances being used solid - Answer-often rigid with definite shape gas - Answer-fills container and is easily comressed liquid - Answer-flows and takes shape of container, has a op surface 2 types of mixtures - Answer-heterogeneous- not uniform through out mixture homogeneous- uniform th...

GPSTC Exam Four Questions And Answers Complete Review 1. Where does the responsibility of report writing come from? State law (G.C.I.C) Department policy and procedure 2. What is a police report form? Any written communication of a department form. 3. What are some purposes and uses of report writing? - Records facts into permanent record - Provide for coordination of follow up activities and inves- tigation leads - Provide a basis for prosecution and defense - Pr...

Quality Management Final Exam Actual questions and answers | updated 2023/24 Accuracy how the measured value are close to the target or true value Precision how the measured values are close to one another little scatter, measurement are to have high precision Juran Trilogy Joseph's model of quality: planning, control, and improvement. Joseph Juran developed 80/20 rule 80% of the process problems are caused by 20% of the causes defined quality as "fitness for use" Phili...

NDFS 350 Test With Answers [100% PASS] /verified/ Identify six reasons you might need to determine certain chemical characteristics of a food product as part of a quality management program *Ans* -check quality of raw ingred, -form. And develop new products -check composition during processing -evaluating new processes for making food products -identify source of problem for unacceptable prod. -develop and check nutritional label What is the meaning of LIMS and what is it used for? *A...