It often is helpful to show the details of data rather than just a mean and standard deviation. Recently I played a hundred games of Solitaire to generate the game times shown above via a histogram (created using Excel with bins ten seconds wide). The mean time to complete a game is 221 seconds (3 minutes and 41 seconds), and the standard deviation is 31 seconds. But the range goes from 160 to 335 seconds. The distribution is roughly symmetrical, with three longer outliers.
I also kept track of the number of moves per game, as shown above via another histogram using a bin width of five. The mean is 133 moves, and the standard deviation is 13 moves. The range goes from 116 to 170 moves. The distribution is skewed positively (to the right) with two outliers.
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