The mathematical term Σ x is the numerator for
A) the population mean.
B) the sample mean.
C) both the population mean and the sample mean.
D) none of these; this term is not in the numerator for any calculation.

Question

Quizplus · Accepted Answer

Σ x represents the sum of all observations in a data set. It is used in both the formula for population mean (μ) and sample mean (x̄) as:

μ = Σx / N (population mean)
x̄ = Σx / n (sample mean)

Therefore, Σ x is present in the numerator for both population mean and sample mean calculations.

The Mathematical Term Σ X Is the Numerator for