total sum of square(part 2) Flashcards
1
Q
what total sum square
A
cal difference observed val and value predict by mean
ITS THE total erro in prediction whne usong mean to predict outcome var
2
Q
what use together to predict better outcome than mean
A
SST-distance observed (data point)and mean and SSr-distance observed and regression line(line best fit)
3
Q
whats the difference bteween SST and SSr called
A
model sum of square
