You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?
A)ΣX - 42
B)(ΣX - 4)2
C)Σ(X - 4)2
D)ΣX2 - 4

Question

You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?​
A)​ΣX - 42
B)​(ΣX - 4)2
C)​Σ(X - 4)2
D)​ΣX2 - 4

Quizplus · Accepted Answer

The instructions are asking to subtract 4 from each score (Xi), square the resulting value (Xi-4)^2, and then find the sum of the squared numbers (Σ(Xi-4)^2).

Therefore, the expression in summation notation would be: Σ(X - 4)2. Choice C is the only option that matches this expression.

You Are Instructed to Subtract Four Points from Each Score,square