How does taking a vastly increased number of measurements affect random uncertainty versus systematic uncertainty?

Answer

It helps reduce the impact of random uncertainty but does not reduce systematic error.

Repeated measurements help average out random fluctuations, reducing the impact of random uncertainty on the final average. However, since systematic error consistently biases every reading, more measurements only result in a more precise average of the wrong answer.

How does taking a vastly increased number of measurements affect random uncertainty versus systematic uncertainty?
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