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When an error of 1\% the error in the measurement of its area is?

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When an error of 1\% the error in the measurement of its area is?

So, the the error in the length and breadth separately will be L*B or deltaL + deltaB where the value of the length and breadth error are 1\% respectively. So, the error in the area will be 1+1= 2\%.

What is the error in the area of rectangle?

Answer: The area of the rectangle with error limits is (19.38 ± 1.48) cm.

Is an error of 1\% is made in measuring its length and breadth the percentage error in area of rectangle is?

An error of 1\% is made in calculating the length and breadth of a rectangle. Let the error in measuring the length be L be dL and the error in measuring the breadth W be dW. The error in the area is \% of the area estimated.

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What do you mean by I absolute error II mean absolute error III relative error and IV percentage error?

Mean absolute error- It is the average of all the absolute errors or alternatively the difference between two given continuous variables. 3. Relative error- It refers to the absolute error with respect to the known value. It is generally expressed in percentage.

How we can reduce random errors?

Random error can be reduced by:

  • Using an average measurement from a set of measurements, or.
  • Increasing sample size.

How do you calculate error length?

Calculate the percent error of your measurement.

  1. Subtract one value from the other: 2.68 – 2.70 = -0.02.
  2. Depending on what you need, you may discard any negative sign (take the absolute value): 0.02.
  3. Divide the error by the true value:0.02/2.70 = 0.0074074.
  4. Multiply this value by 100\% to obtain the percent error:

How do you find the percent error of a rectangle?

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The formula for calculating percentage error is simple: [(|Approximate Value – Exact Value|) / Exact Value] x 100. You will use this as a reference to plug in the two values you need to know. The approximate value is your estimated value, and the exact value is the real value.

Is the smallest measurement that can be made using the given instrument?

The smallest value that can be measured by the measuring instrument is called its least count. Measured values are good only up to this value. The least count error is the error associated with the resolution of the instrument.

What is absolute error in measurement?

Absolute Error is the amount of error in your measurements. It is the difference between the measured value and “true” value. For example, if a scale states 90 pounds but you know your true weight is 89 pounds, then the scale has an absolute error of 90 lbs – 89 lbs = 1 lbs.

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What is absolute error and relative error in a measurement?

The absolute error is the difference between the measured value and the actual value. Relative error is the ratio of the absolute error of the measurement to the accepted measurement. The relative error expresses the “relative size of the error” of the measurement in relation to the measurement itself.