The data set on the right represents
A teacher recorded all of his students' grades on
the final exam as:
DONE
62, 77, 78, 80, 82, 82, 83, 84, 85, 87, 89,95
Consider the formulas:
A: 52_ (x1 - x* +(x2 - x)2 + ... + (xin – x)2
n-1
(y - x)+(x2-x+ +(An - x}}
n-1
co2
(x2 – 40)2 + (x2 – 42+ +(x3 - ?
B. SE
(x2 - 4) + (x2 - 4 +
N
+(9-4)