+--------+-----------------------------------+-------+------+-----------+
| Grade | Grade of (F₇) offspring. | | | |
| of (F₆)+--+--+--+--+--+--+--+--+--+--+--+--+Totals.|Means.|Regression.|
|parents.| ¾| 1|1½|1¾| 2|2¼|2½|2¾| 3|3¼|3½|3¾| | | |
+--------+--+--+--+--+--+--+--+--+--+--+--+--+-------+------+-----------+
| 2⅝ | | | 4| 4|12| 2| 9| 9|12| 1| | | 53 | 2.41 | .21 |
| 2¾ | 3| 1| | 2| 6| 5| 4| 4| 3| | | | 28 | 2.14 | .61 |
| 2⅞ | | | 1| 1| 1| 2| 3| 1| | 1| | | 10 | 2.32 | .55 |
| 3 | | | | | | 1| 3| 1| 3| 1| 3| | 12 | 2.93 | .07 |
| 3⅛ | | 1| 3| 2| 3| 1| 4| 3| 5| 2| 2| 1| 27 | 2.59 | .53 |
| 3¼ | | | | | 3| 1| 3| 3| 1| 3| | | 14 | 2.63 | .62 |
| 3⅜ | | | | | 1| | 2| 2| 2| 2| 1| | 10 | 2.85 | .52 |
+--------+--+--+--+--+--+--+--+--+--+--+--+--+-------+------+-----------+
|Totals | | | | | | | | | | | | | | | |
| or | | | | | | | | | | | | | | | |
|means, | | | | | | | | | | | | | | | |
| 2.80| 3| 2| 8| 9|26|12|28|23|26|10| 6| 1| 154 | 2.46 | .34 |
+--------+--+--+--+--+--+--+--+--+--+--+--+--+-------+------+-----------+