Directly, neither.
However, if you know the true value you can calculate the range.
0 to Infinity
8.9 - 0.2 = 8.7. That is an exact answer which is perfectly accurate. So the percentage error is 0.
percentage error is the difference from the actual value divided by actual value in 100,whereas subtracting the same value from one give u the percentage accuracy
"MAPE is commonly used in quantitative forecasting methods because it produces a measure of relative overall fit. The absolute values of all the percentage errors are summed up and the average is computed." (according to John Galt University)
1% off
0 to Infinity
The percentage error is how accurate your experimental values compared to the accepted value. The equation is: [(experimental value - accepted value) / accepted value] x 100
The more precise your instruments of measurement are, the less percentage of error you will have.
False
A 0-10A ammeter has a guaranteed accuracy of 1.5% of full scale reading.The current measured by the instrument is 2.5A.Calculate the limitting values of current and the percentage limitting error.
15,36 kg
To reduce % error, you may- 1. Take an average over many observations. 2. Use the correct bridge for various measurements of resistance.(see variants of the wheatstone bridge)
it will create a consistence difference in your readings as it is a systematic error.
Random error can be inherent to the system being studied or to the instruments being used to measure characteristics of the system. Sometimes it is possible to find or create measuring instruments that produce results with less random error; sometimes not. Statistical methods can often be employed to estimate actual values shorn of random error. If it not too expensive to obtain individual measurements then it's advisable to gather more measurements so that the statistical methods will produce better results. Systematic errors are often reduced by looking for their sources and eliminating them or by estimating the levels of distortion caused by each of them and correcting measurements accordingly.
Percent error is used when you are comparing your result to a known or accepted value. It is the absolute value of the difference of the values divided by the accepted value, and written as a percentage. Percent error is equal to the difference divided by the known times 100 percent.
Percentage Error is: ~1.4% (1.39049826188%)
Look on the equipment for where it says the plus or minus figure for accuracy (for a burette it is usually + and _ 0.1cm3) divide this by the amount you measured , times 100 to make it a percentage. ---- ---- Percentage Error = Maximum Error / Measured Value X 100 For example.Maximum Error for the following apparatus are:Balance = +/- 0.01Pippette = +/- 0.1 And the Measured value for each are:Balance = 0.15Pippette = 25 Then...the percentage error is:Balance percentage error = 0.01 / 0.15 X 100 = 66.66%Pippette percentage error = 0.1 / 25 X 100 = 0.3% You can now also work out your maximum total error.Maximum total Percentage error = Balance Percentage error + Pippette Percentage errorMaximum total percentage error = 66.66 + 0.4 = 67.06%