This section discusses the sums of squares, including partitioning sum of squares into sums of squares predicted and sum of squares error.
Answers
To compute a deviation score you subtract the mean. 15 - 10 = 5.
To compute SSY, first compute the deviation scores (y) by subtracting
the mean (10) from each number. Then square these values and add them
together: (-8)2 + (-1)2 + 12 + 32 + 52 = 100