File:State Route 20.png
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editDescriptionState Route 20.png |
English: A Q–Q plot for Washington State Route 20 (North Cascades Highway) first opening/final closing dates. Data are from fall 1972 to fall 2021 inclusive.[1] I ignored the winter of 1976-1977 when the highway did not close. A normal distribution would be a straight line in this graph. |
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Source | Own work | |||
Author | Walter Siegmund | |||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:07, 14 November 2021 | 1,088 × 726 (41 KB) | Wsiegmund (talk | contribs) | Added data through fall 2021 | |
01:01, 17 January 2015 | 1,080 × 720 (31 KB) | Wsiegmund (talk | contribs) | Plotted data from fall 1972 through 2014. | ||
23:20, 29 March 2013 | 1,080 × 720 (31 KB) | Wsiegmund (talk | contribs) | Plotted data from fall 1972 through 2012. | ||
17:04, 16 October 2007 | 668 × 529 (60 KB) | Wsiegmund (talk | contribs) | {{Information |Description=Probability chart for Washington State Route 20 (North Cascades Highway) first opening/final closing dates. Data are from fall 1972 to spring 2007 inclusive. I ignored the winter of 1976-1977 when the highway did not close. |
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