Why it is not possible to avoid random error?

Why it is not possible to avoid random errors?

Random error is inherent in all measurement and observation processes, and it is not possible to completely eliminate it. Random error is caused by unpredictable and uncontrolled factors, such as measurement inaccuracies, variations in conditions, or limitations of the measuring instruments. These sources of error cannot be fully eliminated, but they can be reduced or minimized through careful experimental design and the use of high-precision measuring tools.

While it is not possible to completely avoid random error, it is possible to minimize its impact by taking multiple measurements, using a large sample size, and calculating the average of the measurements. This will help to reduce the effects of random error and produce more accurate results. However, a random error will still be present to some extent and will always be a factor to consider in any experimental or measurement process.