Statistics MCQs, Analysis, Software
Measures of Central Tendency are used to find the center of a data set. T These include measure of location, measure of position, and measure of center. Mean, median, mode, weighted mean, harmonic mean, geometric mean, percentiles, quartiles, deciles, fractiles, etc., are all examples of measures of central tendencies.
Introduction to Median of Ungrouped Data The post is about calculating the median ungrouped data. The median is the most central point (middlemost central value) of the data/set of observations, with the condition that the data or set of observations should be arranged in ascending …
Introduction to Geometric Mean The geometric mean (GM) is a way of calculating an average, but instead of adding values like the regular (arithmetic) mean, it multiplies them and then takes a root. The geometric mean is defined as the $n$th root of the product …
Introduction to Weighted Averages The multipliers or sets of numbers that express more or less relative importance of various observations (data points) in a data set are called weights. The weighted arithmetic mean (simply called weighted average or weighted mean) is similar to an ordinary arithmetic mean except that …
Median Definition Median (a measure of central tendency) is the middle-most value in the data set when all of the values (observations) in a data set are arranged either in ascending or descending order of their magnitude. The median is also considered as a measure …