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jazzinvincible
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MY FRIEND AND I NEED HELP WITH FINDING ABSOLUTE AND RELATIVE ERROR, AND IF NOBODY'S ON, THEN I'LL JUST HAVE TO FAIL MY TEST
Absolute error is the difference between the exact value and the measured value of a quantity. It is usually expressed in the same units as the quantity being measured. On the other hand, relative error is the absolute error divided by the exact value, expressed as a percentage. It is used to compare the accuracy of measurements of different quantities.
Absolute error can be calculated by subtracting the measured value from the exact value. Relative error can be calculated by dividing the absolute error by the exact value and multiplying by 100 to get a percentage. Both absolute and relative error can be expressed as positive or negative numbers, depending on whether the measured value is higher or lower than the exact value.
Absolute and relative error are important in scientific experiments as they help determine the accuracy and precision of measurements. They also help identify potential sources of error and improve experimental techniques. In addition, knowing the absolute and relative error can help determine the confidence level of the results and make appropriate conclusions.
To reduce absolute and relative error, it is important to use precise and accurate instruments for measurements. Calibration of instruments and repeating measurements multiple times can also help reduce error. It is also important to understand and account for any sources of error in the experimental setup.
Yes, absolute error can be zero if the measured value is the same as the exact value. This indicates perfect accuracy in the measurement. However, relative error cannot be zero as it is always calculated as a percentage of the exact value, which cannot be zero.