2020.06.17: New calculators: sum, min-max, average and more

New series of calculators published. We call it "number stats" - you can compute average of given set of numbers, find min, max, median, sum and some other useful stats.
Those calculators accept a list of number in any form - you can copy/paste a plain numbers list to process, but you can also paste a bit of text and the calculator will try to extract the numbers from whatever you pasted.
Check that:

• Find min and max in a series of numbers: Numbers: min-max
  
• Calculate the average and median: Numbers: average & median
  
• Show a lot more stats: variance, standard deviation, sort them in ascending or descending order: Numbers: sum & statistics