What is the sst for the data set (1, 4), (2, 6), (4, 11)? a. 9b. 16c. 26d. 11

The SST for the data set is:

             Option: C

                C. 26

SST i.e. Sum -Squared Total,  is the Total of Sum of the Squares.

SST is calculated as follows:

1)  First calculate the mean of the y-value of the given data.

2) Subtract each y-value from the mean calculated above and take the square of the difference quantity.

3) Add or sum these square quantities to obtain SST.

We proceed as follows:

The y-value are:

       4    6      11

The mean of these y-values are:

Difference of the data set from mean is:

4-7= -3

6-7= -1

11-7=4

Square of these difference quantity is:

(-3)²=9

(-1)²=1

(4)²=16

Sum of these squared quantity i.e. SST is:

SST=9+1+16

SST=26

                   Hence, the answer is:

                       Option: C

9 x 8 divided by (5-3)=36

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