In the formula for calculating the standard deviation,what does the Greek letter Σ represent?
A)summation
B)sample size
C)mean score for group
D)individual scores

Question

Quizplus · Accepted Answer

The Greek letter Σ represents summation, which means to add up a set of values. The formula for calculating the standard deviation involves taking the square root of the sum of the squared differences between each data point and the mean. The summation symbol is used to represent this process of adding up all these squared differences.

In the Formula for Calculating the Standard Deviation,what Does the Greek