Question

If the coefficient of determination for a data set is 0.25 and the SSE for the data set is 6, what is the SST for the data set ?

Answer 1

9

Explanation:

The correct answer is: 9.

Answer 2

Answer: The SST for the data set is 8.

Explanation:

Since we have given that

Coefficient of determination (R²) = 0.25

SSE for the data = 6

SST = ?

As we know the formula for coefficient of determination:

`R^2=1-(SSE)/(SST)\\\\0.25=1-(6)/(SST)\\\\0.25-1=-(6)/(SST)\\\\-0.75=-(6)/(SST)\\\\SST=(6)/(0.75)\\\\SST=8`

Hence, the SST for the data set is 8.