File:T-test degrees of freedom.png
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:02, 1 March 2012 | | 1,010 × 246 (18 KB) | Smith (talk | contribs) | |
| 11:53, 14 March 2011 |  | 1,004 × 223 (20 KB) | Smith (talk | contribs) |
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