Question

What is Mean in statistics?

Answer 1

Mean in statistics:

• The arithmetic mean is a measure of the central tendency.
• It is the average of the given data.

$Mean=\frac{sumoftheelements}{Totalnumberofelements}$

• For ungrouped data, the mean $\overline{X}=\frac{1}{n}\sum _{i=1}^n{x}_i$, where $x_i$is the $i^{th}$ element, $n$is the number of elements.
• For grouped data, the mean $\overline{X}=\frac{1}{n}\underset{i=1}{\overset{n}{\sum f_i}}{x}_i$, where $x_i$is the $i^{th}$ element, $f_i$is the frequency of the $i^{th}$ element, $n$is the number of elements.