What is the value of Σ(X - 1)2 for the following scores? Scores: 1,2,1,4
A)10
B)16
C)36
D)49

Question

What is the value of Σ(X - 1)2 for the following scores?​ Scores: 1,2,1,4
A)​10
B)​16
C)​36
D)​49

Quizplus · Accepted Answer

The expression Σ(X - 1)^2 means we need to subtract 1 from each score, square the result, and then sum these squared values. For the given scores 1, 2, 1, 4: - For 1: (1-1)^2 = 0^2 = 0 - For 2: (2-1)^2 = 1^2 = 1 - For 1: (1-1)^2 = 0^2 = 0 - For 4: (4-1)^2 = 3^2 = 9 Summing these values: 0 + 1 + 0 + 9 = 10

What Is the Value of Σ(X - 1)2 for the Following