Data Set 12-1 -In Data Set 12-1, MS_error Is Equal to
A) 4

Multiple Choice

Data Set 12-1: $$\begin{array} { c l l l r } \text { Subjects } & X _ { 1 } & X _ { 2 } & X _ { 3 } & \sum \\\hline 1 & 0 & 3 & 5 & 8 \\2 & 3 & 4 & 6 & 13 \\\hline \Sigma & 3 & 7 & 11 & 21\end{array}$$
-In Data Set 12-1, MS_error is equal to

A) 4.34
B) 1.33
C) 2.08
D) 0.67