You are instructed to subtract 4 points from each score and find the sum of the resulting values.How would this set of instructions be expressed in summation notation?
A)ΣX - 4
B)Σ (X - 4)
C)4 - ΣX
D)Σ(4 - X)

Question

Quizplus · Accepted Answer

The instruction "subtract 4 points from each score" can be expressed as X - 4. The instruction "find the sum of the resulting values" can be expressed as a summation notation, which is represented by the symbol Σ. Therefore, the final expression would be Σ (X - 4), which is choice B.

You Are Instructed to Subtract 4 Points from Each Score