The normal way is to keep a count of, and the sum of, the numbers so far. The sum divided by the count is the mean at any point
Further statistics can calculate other values in a similar way, such as standard deviations.
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The normal way is to keep a count of, and the sum of, the numbers so far. The sum divided by the count is the mean at any point
Further statistics can calculate other values in a similar way, such as standard deviations.