| Central Tendency - Ungrouped Data | |||
| Measure | Value | S.E. | Value/S.E. |
| Arithmetic Mean | 269.343473684211 | 21.883849825998 | 12.3078651985735 |
| Geometric Mean | 252.240360715063 | ||
| Harmonic Mean | 235.0814141684 | ||
| Quadratic Mean | 284.896750971295 | ||
| Winsorized Mean ( 1 / 6 ) | 268.575421052632 | 21.4598125879931 | 12.5152733720937 |
| Winsorized Mean ( 2 / 6 ) | 267.913421052632 | 20.8359230758539 | 12.8582458323197 |
| Winsorized Mean ( 3 / 6 ) | 265.113 | 18.3867292131552 | 14.4187145482253 |
| Winsorized Mean ( 4 / 6 ) | 263.816368421053 | 17.5873129408890 | 15.0003794955909 |
| Winsorized Mean ( 5 / 6 ) | 264.888210526316 | 15.8859119325068 | 16.6744101095187 |
| Winsorized Mean ( 6 / 6 ) | 261.664 | 12.3887056623484 | 21.1211733599617 |
| Trimmed Mean ( 1 / 6 ) | 268.007705882353 | 21.2804160455523 | 12.5941008535107 |
| Trimmed Mean ( 2 / 6 ) | 267.2886 | 20.5682123652703 | 12.9952275508065 |
| Trimmed Mean ( 3 / 6 ) | 266.832 | 19.4503899189708 | 13.7185938745499 |
| Trimmed Mean ( 4 / 6 ) | 267.821727272727 | 19.0979291019595 | 14.0236004565148 |
| Trimmed Mean ( 5 / 6 ) | 269.935666666667 | 18.0999405224621 | 14.9136217509486 |
| Trimmed Mean ( 6 / 6 ) | 272.675714285714 | 16.1055866656119 | 16.9305049202536 |
| Median | 290.284 | ||
| Midrange | 280.6975 | ||
| Midmean - Weighted Average at Xnp | 259.7421 | ||
| Midmean - Weighted Average at X(n+1)p | 267.821727272727 | ||
| Midmean - Empirical Distribution Function | 267.821727272727 | ||
| Midmean - Empirical Distribution Function - Averaging | 267.821727272727 | ||
| Midmean - Empirical Distribution Function - Interpolation | 269.935666666667 | ||
| Midmean - Closest Observation | 259.7421 | ||
| Midmean - True Basic - Statistics Graphics Toolkit | 267.821727272727 | ||
| Midmean - MS Excel (old versions) | 267.821727272727 | ||
| Number of observations | 19 | ||
