The standard deviation of a data set can be calculated from the following equation. s =
$\sqrt{\frac{\sum_{i=1}^{n}\left(x_{i}-x\right)^{2}}{n-1}}$
What does the value under the sigma (i = 1)represent?

Question

Quizplus · Accepted Answer

The value under the sigma (i = 1) represents the starting point of the summation, indicating the value of the first data point in the series.

The Standard Deviation of a Data Set Can Be Calculated ∑i=1n(xi−x)2n−1\sqrt{\frac{\sum_{i=1}^{n}\left(x_{i}-x\right)^{2}}{n-1}}n−1∑i=1n​(xi​−x)2​​

The Standard Deviation of a Data Set Can Be Calculated $\sqrt{\frac{\sum_{i=1}^{n}\left(x_{i}-x\right)^{2}}{n-1}}$