Is A Low Percent Error Good
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What Percent Error Is Considered Accurate
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What Is A Good Percent Error Range
yours Lab Experiment #1: Introduction to Scientific Investigation. by Dr. Hayek Thank 11 Flag lesson Tip: This isn't the place to ask a question because the teacher can't reply. Post More videos Key Questions What does accuracy in chemistry mean? If a measurement is accurate, that means that it's close to the actual value of the thing being measured. what does percent error tell you For example, if my cat weighs 6500 grams and a scale said it weighed 6400 grams, this measurement would have moderately good accuracy. OK. misterguch · 1 · 1 comment · Jul 3 2014 How can precision be measured? To measure precision, just measure something a whole bunch of times with some measuring tool. If you get the same answer every time, you've got a precise measurement. Typically, precision manifests itself in the number of significant figures present in a measurement. If a balance can read the mass of something to 1.488 grams, we assume that it's precise to the nearest 0.001 gram. This may or may not actually be the case. misterguch · 1 · 4 comments · Mar 24 2014 Why is percent error important? Percent error tells you how badly things went wrong. Here's the deal: Whenever you do an experiment, things go wrong - that's true for anybody no matter how good they are. Things get spilled, things are impure, equipment is imprecise... you get the idea. No matte
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What Does Percent Error Mean In Chemistry
& Mathematics Social Science Society & Culture Sports Travel Yahoo Products International Argentina Australia Brazil error analysis physics lab report Canada France Germany India Indonesia Italy Malaysia Mexico New Zealand Philippines Quebec Singapore Taiwan Hong Kong Spain Thailand UK & Ireland Vietnam what is a high percent error Espanol About About Answers Community Guidelines Leaderboard Knowledge Partners Points & Levels Blog Safety Tips Science & Mathematics Mathematics Next What is percent error? 1 following Report Abuse Are you sure you want to delete this answer? https://socratic.org/chemistry/measurement-in-chemistry/accuracy-precision-and-percent-error Yes No Sorry, something has gone wrong. Trending Now Carla Gugino Laverne Cox Clayton Kershaw Alan Jackson Engagement Rings Credit Cards Doctor Strange Ben Affleck Ashley Greene Health Insurance Answers Relevance Rating Newest Oldest Best Answer: percent error is the deviation from accuracy per 100 units, calculated by the formula, (obtained reading - accurate value) / (accurate value) * 100 % e.g if a coin is 2mm thick, but your reading comes out to be https://answers.yahoo.com/question/index?qid=20080622073337AAgL7z5 2.2mm, then % error is (2.2 - 2) / 2 * 100% = 0.2 / 2*100 % =10% if you get a reading of 0.8 mm, % error = (0.8 - 2.0) / 2 *100% = -10% Source(s): My name's none of your busin · 8 years ago 1 Thumbs up 0 Thumbs down Comment Add a comment Submit · just now Asker's rating Report Abuse Percent Error Definition Source(s): https://shrink.im/a8gvV puzo · 3 weeks ago 0 Thumbs up 0 Thumbs down Comment Add a comment Submit · just now Report Abuse Before getting into percent error, let's define two terms. Actual or Theoretical answer: This answer comes from working the experiment through equations before you actually run the experiment. It's called "actual" because there will always be an error associated with your observed answer. Observed or Experimental answer: This answer comes from running the experiment. Here is a scenario where you would use percent error: You are running an experiment that is testing the law of gravity. On paper you figure out your "actual answer" and then using a stopwatch, you figure out your "observed answer." You compare both answers using "percent error." Percent error = (observed - actual) / (actual) * 100 A practical way you would use percent error is to see how closely a machine you've des
In Statistics, Numerical Analysis and Simulation Why is lower percentage error better? Why is lower percentage error better? SAVE CANCEL already exists. Would you like to http://www.answers.com/Q/Why_is_lower_percentage_error_better merge this question into it? MERGE CANCEL already exists as an alternate http://www.fluther.com/60748/what-does-error-percentage-mean/ of this question. Would you like to make it the primary and merge this question into it? MERGE CANCEL exists and is an alternate of . Merge this question into Split and merge into it SAVE CANCEL Edit Answer by Ks4b Confidence votes 1.8K I would have thought this percent error blindingly obvious but no matter, a lower percentage error is better because it means your approximation to a solution is closer to the real answer than an approximation with a higher error. I would have thought this blindingly obvious but no matter, a lower percentage error is better because it means your approximation to a solution is closer to the real answer what is a than an approximation with a higher error. Minor edit? Save Cancel 8 people found this useful Was this answer useful? Yes Somewhat No Thanks for the feedback! Follow Annabella Gutman Q&A Model and actress: Crowned Miss Los Angeles 2014 & 2015 What was your favorite part of filming "Dominion"? View Full Interview What would you like to do? Flag Answered by The WikiAnswers Community Making the world better, one answer at a time. Answered In Science What is the difference between an error as a percentage of full scale or an error as a percentage of reading? Error as a percentage of full scale is established by multiplying the error percentage by the full scale flow. The less you flow through the device the less accurate the readi…ng will be. For that reason, you don't want to get a larger device than you need. Devices with error expressed as a percentage of full scale are most accurate when flowing at full scale. Error expressed as a percentage of reading expresses error as a percentage of what the device is actually flowing. Simp
of the equation and compared it to the given data for the project. So what does error percentage mean, whether its high or low? Share Question Flag as... science mathematics Observing members: 0 Composing members: 0 8 Answers I think it's the deviation of your data from the given data. A high error percentage would then mean that your data are very different from the given data, a low percentage means they resemble them very closely. But I'm not very knowledgeable about the intricacies of how mathematics and statistics work, so don't take my word for it. Fyrius (14520)"Great Answer" (1) Flag as… ¶ Error percent = (estimated - actual)/ actual * 100% LostInParadise (21255)"Great Answer" (0) Flag as… ¶ @Fyrius You're totally right. Error percentage is a measure of how different the two pieces of data are. The higher the percentage, the worse the equation, essentially. Usually, >3% would be good, but since this seems like it's for school, you can probably claim a much higher percentage as being okay. BhacSsylan (9520)"Great Answer" (1) Flag as… ¶ @BhacSsylan Yay! :D It's nice to be right about something occasionally. Fyrius (14520)"Great Answer" (0) Flag as… ¶ In quantitative research, the error is the probability that the actual value lies outside the given range. If you took a sample of 100 people and took their average height, you could assume their average height is the same as that of the population (if you sampled correctly). This assumption would be correct to a degree of accuracy. The standard deviation of your statistics gives you a clue. For a standard bell curve, 96% of the population lies within two standard deviations. You can then state in a published paper that the average population height is "x" +/- 2SDs, with p<0.05. 0.05 is your error value. 0.05, or 5%, is usually the accepted value in medical research. NB. This only refers to type 1 errors. For type 2 errors the calculation method is different, and the accepted margin of error is 20%. FireMadeFlesh (16528)"Great Answer" (0) Flag as… ¶ Giving an absolute number such as "3 percent error is ok" or "p=0.05 is ok" or whatever for a general case does not sound reasonable to me. How much is ok depends on 1) what data you have, and 2) what you are gonna use the results for. Janka (2172)"Great Answer" (0) Flag as… ¶ @Janka This is true, but that's why i said "more is probably