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April 18, 2014

Search: accurate/precise

Number of results: 1,932

chemistry
The figure below represents the bulls eye target for an archer. The black dots represent where the archer’s arrows hit: How can this archer be described? a. accurate b. precise c. accurate and precise d. neither accurate nor precise
Monday, March 15, 2010 at 10:17pm by khin

accurate/precise
Can a set of measurements be precise but not accurate? Explain. My weight is 3.23945866 lbs. However, my doctor says it is more like 220 lbs. Which is more precise, and which is more accurate?
Wednesday, September 6, 2006 at 8:37am by anonymous

Chemistry
Three people weigh on a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 for the mass of the standard. These results imply that the balance that was used is ___________. a) neither accurate nor precise b) accurate c) precise d) accurate and ...
Thursday, February 20, 2014 at 8:01pm by Bryan

Physics
Precise indicates how many significant digits there are in the measurement. Those values are precise to three digits, to the hundretths. That does not mean they are accurate, and in this case there is signifcant error from the known. Accuracy is measured by either percent ...
Wednesday, January 28, 2009 at 9:03am by bobpursley

Physics
HI! :( Im sorry to bother you guys but I need help on only these three questions. I'm not trying to cheat but these three are really confusing. This is the first time I've ever asked for help on the internet haha. Please dont be upset I promise this is the only time. 13. You ...
Wednesday, October 17, 2012 at 6:49am by Godrick

Physics
how do you figure out if a value is accurate or precise? three values were obtained for the mass of a metal bar: 8.83 g; 8.84 g; 8.82 g. the known mass is 10.68 g. i dont understand if the values are precise or accurate or how to even figure that out!!
Wednesday, January 28, 2009 at 9:03am by y912f

Physics
Accuracy is how close a measured value is to the actual (true) value. Precision is how close the measured values are to each other. Say you are shooting at a Target. You shoot five times, and they all hit the bulls eye near each other; this is accurate and precise, because ...
Friday, August 5, 2011 at 5:20pm by Eli

Science
A student measures a rectangular room to be 20.0 m X 17.16 m. Which of the numbers below represents the room’s area with the correct number of significant figures? a. 340 m^2 b. 343 m^2 c. 343.2 m^2 d. 343.20 m^2 B Which component of the technological system is activated when ...
Wednesday, October 2, 2013 at 12:32pm by Anonymous

Science- Ms. Sue or DrBob222?
A student measures a rectangular room to be 20.0 m X 17.16 m. Which of the numbers below represents the room’s area with the correct number of significant figures? a. 340 m^2 b. 343 m^2 c. 343.2 m^2 d. 343.20 m^2 B Which component of the technological system is activated when ...
Wednesday, October 2, 2013 at 3:48pm by Anonymous

Physics
13. The balance is not very precise. A good quality balance should have a precision (readability) if 0.01 grams. It is fairly accurate (free of bias), since the mean is within a standard deviation of the actual value. I am not sure what the person who asked the question ...
Wednesday, October 17, 2012 at 6:49am by drwls

chemistry
it is accurate, and precise to three digits.
Tuesday, July 13, 2010 at 3:41pm by bobpursley

science help please?????????????
A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3 of water should have ...
Friday, December 6, 2013 at 7:25am by centya

Science need help???
A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3 of water should have ...
Saturday, December 7, 2013 at 12:05pm by centya

STATISTICS HELP
A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3 of water should have ...
Monday, December 9, 2013 at 8:17am by john

math
the chance that "an" applicant will get hired is 1.0, assuming they hire one of the 50. All other things being equal, the chance that any particular applicant is hired is 2/50 = 4% ask precise questions if you want precise answers. Accurate answers are even harder to come by.
Monday, September 3, 2012 at 3:50am by Steve

physics
It is accurate, no doubt. But precise? Precision is expressed by the number of digits, as in 8.83564978grams.
Tuesday, September 10, 2013 at 7:59pm by bobpursley

Geography
What is absolute location? A.a precise measure of where a location falls in terms of longitude and latitude using units such as minutes and seconds B.a precise measure of distance around the equator C.a more precise measure of where a location falls in terms of longitude and ...
Monday, February 4, 2013 at 3:24pm by Anon

Science- Ms. Sue or DrBob222?
Yes, 343.2 must be rounded to 3 s.f. I think the crash is the input. With regard to the last one I'm not so sure I would go with B. It's a little difficult to know because we don't know what the asker considers precise and or accurate. Certainly the accuracy is no good by any ...
Wednesday, October 2, 2013 at 3:48pm by DrBob222

Physics
Measurements can be described as accurate and/or precise. Define accuracy and precision and give examples of how those terms could be used to describe a measurement.
Friday, August 5, 2011 at 5:20pm by Eli

Physics
which do you prefer to use, an instrument which is more precise or one which is more accurate? WHY? thanks po! :)
Friday, June 29, 2012 at 10:45pm by Gen

Math
0.810g/mL-1.375g/mL-2.046g/mL are these numbers precise or accurate or both?
Tuesday, August 30, 2011 at 3:29pm by Robert

physics
No, No, No. Precision is how many significant digits there are. What is todays temp? AnswerPrecise: 64.3421F AnswerAccurate: 99F Generally accepted as true: 98F So which is more accurate, and which is more precise?
Friday, August 5, 2011 at 5:33pm by bobpursley

chemistry
Say you made three different mass measurements of a sugar cube. You know the mass is 1.0g. how would you know whether or not the measurements were accurate? Precise?
Thursday, October 11, 2007 at 11:45pm by Alyssa

Physics
Should the wavelengths computed from 2nd order lines be more accurate or more precise than those compute from 1st order lines?
Tuesday, April 17, 2012 at 6:46pm by Anonymous

Chemistry
MgO is 60.3% Mg. Mg3N2 is about 72% Mg Mg3N2 with water added changes to Mg(OH)2 which is then is changed to MgO upon heating. For a small sample, the overall weight changes are quite small. You would need very precise lab results to make accurate calculations of the % of ...
Tuesday, September 23, 2008 at 10:49pm by GK

physics
these values were obtained as the mass of a bar of metal: 8.83g 8.84g 8.82g the known mass is 8.83g the values are both accurate and precise- true or false
Tuesday, September 10, 2013 at 7:59pm by tisha

Chemistry
I think that's a debatable question. Also I think the answer depends somewhat upon what you are doing. For quant work, where you want the weight of a sample or the weight of a ppt I believe weighing by difference is preferred. In SOME cases it may be more accurate and precise.
Tuesday, September 24, 2013 at 12:26pm by DrBob222

science
Accuracy: How close the observed is to the generally accepted value. Precision: How many digits appear in the value? 34.5555960686 is a very precise value, but it may be not accurate (the true value is 55.3) Reliability: The tendency in an experiment of getting the same ...
Monday, September 7, 2009 at 5:19pm by bobpursley

Statistics
It is known that the amount of time needed to change the oil in a car is normally distributed. A random sample of 100 oil changes yielded a sample mean of 22 minutes and a standard deviation of 5 minutes. Then compared to the interval estimate for the previous question. This ...
Monday, February 26, 2007 at 3:50pm by Jason L

Clinical Chemistry
Thank you... Any ideas on ISE vs. flame photometry? I was thinking that maybe flame photometry comes out consistently slightly lower because it is hard to standardize? I mean, its hard to get the exact temperature of the flame to be precise (and accurate)?
Tuesday, April 9, 2013 at 8:57pm by Jesse

Physics
The first to the correct number of sig digits (determined by 7.5, the least precise number) will be 77 The second should be to three sig digits, 5.10 The third should be precise to the tenths digit, (determined by 10.8, the least precise number),or 13.5
Monday, August 24, 2009 at 8:14pm by bobpursley

statistics
The confidence limits use the mean and the standard deviation (mean ± 1.96 SD for 95% confidence interval)). The less variable the confidence limits (lower SD), the more accurate/precise the estimate is. I hope this helps.
Monday, January 18, 2010 at 9:42am by PsyDAG

Chemisty (Sig Figs)
the 8.1 will limit the answer to two sig figures. The answer cannot be more precise than the least precise number.
Monday, August 23, 2010 at 8:09pm by bobpursley

Physics
if measurements show precise position for an electron can those measurements show precise momentum aslo? Explain
Friday, November 20, 2009 at 1:02pm by Tarea

Chemistry
Is a beaker more precise in determining volume than an Erlenmayer flask??? Probably... More precise would be a graduated cylinder but if that's not an option I'd go with the beaker. See my answer to a similar question below. It all depends upon the size of each and how much ...
Thursday, April 19, 2007 at 10:07pm by John

chemistry
The density of sample measurements taken by a tech are: 0.810g/mL, 1.375g/mL, 2.046g/mL. The Actual density is 1.027g/mL. Are these measurements by the tech. precise accurate or neither or both Is the correct answer: Neither??? Thanks,
Monday, October 10, 2011 at 4:58pm by Connie

chemistry
the accepted boiling point of ethanol is 78.5C. a student takes the temp of a sample of ethanol which is boiling in a beaker on a hotplate. the student reports the temp as 78.5C. is this measurement precise, accurate, both or neither?
Tuesday, July 13, 2010 at 3:41pm by Anonymous

Quick Help (urgent)
How do you know the information presented on the sites are accurate? healthunit . com teenwire . com sexualityandu . ca sexetc . org I don't know how to do this question. Truth is I "don't" know if the information is accurate. Please help, like give me an example of how I can ...
Sunday, October 4, 2009 at 7:56pm by John

Astronomy
In fact, more precise calculations suggest that ISON was on a hyperbolic, unbound orbit. How much more precise? Find the minimal speed with which the comet would have had to be moving when observed at perihelion in order to eventually escape the Solar system, in km/s.
Monday, December 9, 2013 at 3:42pm by keitanako

Eng B
A. meaning are hidden in precise words B each couplet must rhyme. C. sound and content have equal weight. D. there's no specific point of view. It's A meaning are hidden in precise words
Wednesday, May 1, 2013 at 2:11pm by Jen

science
My answer is a little different than yours but mostly for the same reasons you cite. Experimental measurements MAY give the true value but we have no way of knowing what the true value is; therefore, we don't know if the measurment is 100% accurate or not. And of the 50 ...
Saturday, September 1, 2007 at 8:12pm by DrBob222

chemistry
would this be true, false, or sometimes tru 1)An answear to calculations done with scientific measurements cannot be more precise than the least precise measurement. Calculators cannot improve precision, nor accuracy. Precision is in the measurements. so it's true?
Friday, January 12, 2007 at 1:34pm by Bryan

Science
What process involves the comparison of rock layers with others in a sequence to determine its age? radioactive decay radiometric dating relative dating absolute dating To determine the most accurate and precise age of Earth's oldest rocks, geologists would use relative dating...
Wednesday, October 30, 2013 at 4:51pm by Abby

American Government
The term "public opinion" is frequently used in reference to all of American society. This perspective is? A. accurate, since Americans are one people and indivisible B. less accurate than view of public opinion based on majority, since the political system operates on the ...
Tuesday, October 2, 2012 at 10:32pm by Liz

Chemistry (Check)
Is the following sentence true or false? An answear is as precise as the most precise measurement from which it was calculated. My Answear: True Round the following measurements as indicated 1)Round 65.145 meters to 4SF (69.145) 2)Round 100.1 to 1SF (100.2) No. An answer is as...
Wednesday, January 17, 2007 at 3:51pm by Bryan

Significant Digits
well, when muliplying, the answer is limited to the number of significant digits of the least precise number: In this case, the 2.7 dominates as the least precise.
Friday, September 28, 2007 at 7:18pm by bobpursley

math
by Friday you have run 1+2+4+8+16 = 31 miles that's by the end of Friday. By the time yo got up on Friday, you have only run 15 miles. Be precise in your language if you want a precise answer. "by Friday" is unclear.
Thursday, October 11, 2012 at 10:16am by Steve

American Government
Are these your choices? a. accurate, since Americans are one people and indivisible. b. less accurate than a view of public opinion based on the majority, since the political system operates on the principle of majority rule. c. less accurate than the idea that Americans form ...
Sunday, July 7, 2013 at 5:05pm by Ms. Sue

History The Great Wall of China
Thank you for your time ladies. I reviewed the site that Ms. Sue supplied and found some very helpful information. However, there are still no precise measurements available. I decided to scale down and focus on a specific part of the great wall, constructed during the Qin ...
Sunday, June 13, 2010 at 3:33pm by Hannah

Physics Mathematics
do we have to have the same amount of significant numbers in the values we got by convertion? No. Your conversion factors may have some lack of precision. Examples 60sec=1min infinitely precise, a definition. 1.6km= 1mile two sig figures, because the mile to km is a measured ...
Friday, September 15, 2006 at 9:00pm by Katrina

social studies 8th grade
Can you please help me find an accurate map of The Treaty of Fontainebleau 1762? I am trying to complete a project and want to make sure it is accurate
Saturday, April 13, 2013 at 11:22am by Reed

American History
Public opinion is ordinarily used in reference to the whole society. This perspective is a. accurate, since Americans are one people and indivisible. b. less accurate than a view of public opinion based on the majority, since the political system operates on the principle of ...
Friday, October 15, 2010 at 9:09pm by john

statistics
if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
Monday, January 18, 2010 at 11:16am by jemmy

statistics
if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
Monday, January 18, 2010 at 6:14pm by jemmy

american government
Public opinion is ordinarily used in reference to whole society.This perspective is: a)accurate,since Americans are one people and indivisible b)less accurate than a view of public opinion based on the majority,since the political system operates on the principle of majority ...
Wednesday, June 30, 2010 at 8:03pm by vedrana

social studies
Forecasts of economists have.....1. overestimated inflation 2. underestimated inflation 3. generally been accurate on inflation 4. been less accurate than forecasts of economic growth 5. been as accurate as those for economic growth
Thursday, October 27, 2011 at 9:11pm by carrie

maths
if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
Tuesday, January 19, 2010 at 3:20am by lucy

chemistry
do you think that determining the volumes of your metal samples by measuring their dimensions and calculating would be more accurate or less accurate than determinging these volumes by water displacement?
Thursday, September 20, 2007 at 9:03pm by Anonymous

Chemistry
Using a buret instead of what? Generally burets give a more accurate reading of the volume. However, one can do titrations and WEIGH the amount of liquid added and that is just as accurate (if not more so).
Wednesday, April 24, 2013 at 7:05am by DrBob222

Quick Help (urgent)
John, how do you know if what your mom tells you is accurate? How do you know if what your teacher tells you is accurate? How do you know if what your priest tells you is accurate? You have to explore other sources, analyze, and compare. You can also weigh the reliability of ...
Sunday, October 4, 2009 at 7:56pm by bobpursley

Help
Jane claimed that a number is divisible by 4 if each of the last two digits is divisible by 4. Is this claim accurate? If not, how would you suggest that Jane change it to make it accurate?
Saturday, October 19, 2013 at 9:11pm by Trudy

science
Scientist keep accurate records when they are conducting an investigation. Describe two reasons why it is important that scientists keep clear, thorough, accurate records. Please help me? thank you
Tuesday, April 1, 2008 at 5:03pm by Dj

Science
How does accuracy differ from precision? Accuracy is how close a measurement is to a generally accepted value. Precision is how many digits the measurement is. My weight is 160 lbs, generally accepted as true. My to scales recoreded my weight as 164lbs, and as 144.432 lbs. The...
Thursday, January 11, 2007 at 4:19pm by Dennis

science
The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground Is this true? yeah it is true yeah it is true The true speed of a moving car on the Earth, if you want to be very precise, would be the speed ...
Thursday, May 10, 2007 at 11:27am by Haley

chem (Check)
The Question: Why must a calculated answear generally be rounded? My Answear: A calulated answear cannot be more precise than the least precise measurement from which it was calculated. I think your answer is ok but I think you are leaving out information that should be ...
Monday, January 15, 2007 at 10:32am by Bryan

math
If you're serious about getting an accurate answer to your question, then you'll be serious about posting an accurate question. You have six misspelled words and lack a capital letter at the beginning of the sentence.
Thursday, May 7, 2009 at 9:35pm by Ms. Sue

Chemistry (Check)
Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known accurately plus a last ...
Saturday, January 13, 2007 at 10:24am by Bryan

vocabulary
This mstake made a differnece of about two inches and a half in the shot - that is to say in the position of the peg nearest the tree;...of course the error, however trivial in the beginning, increased as we proceeded with the line....: Something that is trivial is definitely ...
Thursday, September 26, 2013 at 11:10pm by cici

economic
In a free market, which of the following is an accurate statement regarding price? A) Prices tend to increase. B) The price of a good or service helps to quantify its value to consumers. C) None of these statements are accurate. D) Sellers offer misleading information to beef ...
Saturday, September 22, 2012 at 1:02pm by joe

physics
You have to measure an angle, and a distance to do this. The last example I gave you is as accurate as you can measure the base distance along the river, and as accurate as one can measure angles with a protractor. Your comment it was just an estimate baffles me, it reflects ...
Sunday, September 13, 2009 at 1:37pm by bobpursley

Psych
The DSM is a standardized way of diagnosing symptoms as criteria to determine what disorders (if any) are present. Once the disorder is diagnosed, various treatments can be applied. As accurate as the criteria are, the DSM will be effective in diagnosing. How accurate do you ...
Monday, September 16, 2013 at 1:13pm by PsyDAG

geometry
Rewrite the biconditional as a conditional statement and its converse and then determine if the biconditional is an accurate definition: Two angles are supplementary if and only if they form a linear pair conditional:_____________________________ converse:...
Tuesday, October 2, 2007 at 10:11pm by alan

Psychology
Like the popular belief that older adults do poorer in schools than their younger counterparts, the midlife crisis___________________. 1.is more accurate when describing an older population. 2.is more accurate when describing adolescents. 3.occurs more often among men. 4.is ...
Sunday, July 31, 2011 at 12:08pm by Pete

Physics
yes, precise.
Wednesday, January 28, 2009 at 9:03am by bobpursley

chemistry
that is precise
Monday, March 15, 2010 at 10:17pm by Anonymous

Chemistry
Every chemical reaction involves definite mole ratios. That is the meaning of stoichiometry. A baking cake involves several complex chemical changes with precise mole ratios of reactants and products to each other. That is difficult to show and has little to do with the ...
Saturday, December 5, 2009 at 11:24pm by GK

MATH (SURDS)
I am somewhat confused. The question on the determination is how accurate. What is the square root of 7? To how many decimal places. Your construction probably involved measuring. So how accurate is the measuring? \ If one takes any prime number, take the square root. It is an...
Wednesday, April 23, 2008 at 1:41am by bobpursley

Science question
True. Revise-to come to different conclusions about somebody or something after thinking again. OR to change a previous estimate in order to make it more accurate or realistic. So, I agree with revise because, basically revising is strengthening and proving something while ...
Thursday, October 31, 2013 at 5:27pm by Gabby

algebra
To Be PRECISE!! IT is THE LOAN ARRANGER
Tuesday, May 4, 2010 at 8:36pm by Chris K

chemistry
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty. You could use either of the two options given below. • Take a ruler and measure the height of the textbook three ...
Wednesday, June 15, 2011 at 10:03pm by mema

chemisry
The answer is no more precise than the measurements.
Sunday, April 27, 2008 at 7:15pm by DrBob222

Grade 6 math
Isn't 5.60 more precise than 5.6?
Monday, March 2, 2009 at 7:54pm by bobpursley

Math
Explain why are precise measurements important?
Wednesday, March 7, 2012 at 9:22pm by Mia

English
1. No. The usual phrasing is "wide-set eyes." 2. Yes 3. You could write "contentedly" but there's no such word as "contently"! Yes, either "TV" or "the TV" is fine. 4. You need the word "playing" in there -- for parallel and logical reasons. 5. To use both "at" and "about" is ...
Tuesday, November 15, 2011 at 1:14pm by Writeacher

science (P.S.)
I should warn you that Newton's universal "law" of gravity is not perfectly accurate, and has been replaced by the more accurate, and much more complicated, General Theory of Relativity of Einstein. The Einstein theory has met all experimental tests, and correctly predicted ...
Tuesday, January 10, 2012 at 12:39am by drwls

Physics lab
During a lab, we dropped a ball from the second story of our school and found out the distance, ave. time, ave. velocity, final velocity and the acceleration. One of the questions is: If we could redo this experiment from a 300 ft radio tower instead of from the second story ...
Monday, September 22, 2008 at 7:54pm by Gray

Physics
so these values would just be considered precise..?
Wednesday, January 28, 2009 at 9:03am by y912f

geometry honors
precise name of quadrilateral with vertices A(-2,4) B(2,6) C(6,4) D(2,-3)
Monday, February 8, 2010 at 7:36pm by Jane

geometry honors
precise name of quadrilateral with vertices A(-2,4) B(2,6) C(6,4) D(2,-3)
Monday, February 8, 2010 at 11:01pm by Jane

Chemistry
What are two reasons for precise but inaccurate measurements?
Monday, August 20, 2012 at 6:13pm by Catherine

Chemisty
I understand. I know you don't think I answered your question but I did the best I could without enough information. You must define accuracy. How accurate is "an accurate result"? Is that 1 ppt, 1%, 10% 50%, just what. From your response I assume you weighed the CO2. What ...
Thursday, February 6, 2014 at 8:57pm by DrBob222

science
what is the name for precise information provided by numerical data
Wednesday, September 17, 2008 at 5:00pm by sasha

Social Studies
I'd go with the second one. It's more precise.
Saturday, January 21, 2012 at 10:11am by Writeacher

history
Which of the following statements about the Southern planter's world is most accurate? A. The stereotype of the "southern belle" is fairly accurate. B. Most great planters of the Old South were self-made men. C. The wives and daughter of plantation owners lived lives of ...
Wednesday, November 30, 2011 at 5:15pm by jake

chemistry
1.182 is correct. (It has 4 "sig figs" or "significant figures" since the given quantity only had 4 sig figs. Your answer can only be as accurate as the least accurate number given to you. If you would include the digit when you write the value in scientific notation - it's a ...
Wednesday, March 11, 2009 at 9:30pm by Toothpicks

Chemistry
Thank you, I made the change. My professor is very precise, so I'm glad you noticed that!
Friday, May 2, 2008 at 2:10pm by Kate

science
it's a small amount, it doesn,t have to be very precise, just the average
Friday, November 7, 2008 at 8:20am by Stephanie

Biology
I tried this website myself. They are so precise when they answer you're, they're literally awesome.
Tuesday, August 31, 2010 at 11:57am by Chris

Math
Right. Although it would be more precise if it were (18/g) - 7
Tuesday, November 27, 2012 at 8:38pm by Ms. Sue

Geography (Ms. Sue)
Is it asking me to provide the current time at this precise moment?
Sunday, October 6, 2013 at 10:17pm by Anonymous

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