{'fraction_non_alphanumeric': 0.019430637144148215, 'fraction_numerical': 0.012200632625395391, 'mean_word_length': 4.45320197044335, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Opening an Attache Case: An Informal Look

Probability is generally defined as the likelihood that a particular event will occur and is expressed as the ratio of the number of successful outcomes to the total number of outcomes. This concept was employed as a measure to gather some insight into a feeling that when opening an attache case, the number of times that is is upside down appears to exceed that which could reasonably be expected as a result of chance. Note was made, over a 2-yr. period, as to which side of an attache case was up when opening was attempted. The rigid body case measured approximately 18 x 14 x 5 in., was constructed of a vinyl-covered plastic, and other than the manufacturer's name and logo, positioned inconspicuously in a relatively small area beneath the handle, it was symmetrical and offered no clue as to sideness. The latching mechanism was structured so that the process required for opening was the same, regardless of whether the case was right side up or upside down. However, the latch was designed so that it would not release unless the case was right side up. A total of 1483 observations were made, with the following results noted: right side up 769, and upside down 714. Thus, the case was incorrectly positioned in 48.1% of the attempts. A t test showed this percentage is not significantly different from chance at the 0.05 level. The results imply that the notion that, when opening an attache case more times than not it is upside down is probably unfounded. The inconvenience experienced when the wrong side is up most likely tends to exaggerate the perceived frequency of occurrence. That over the long run it appears that 50 times out of 100 the case will be positioned wrong, tends to support the incorporation into the design of the case of a latching mechanism that prevents its being opened when it is upside down. However, it also suggests perhaps carrying the design concept one step further: some marking which would conspicuously alert the user as to which side was the up side. While this whole issue may seem trivial, many times the summation of all such triflings, over the course of a day, can add up to a lot of needless psychological stress.