Average and Types of Averages
Average “A single value which can represent the whole set of data is called an average”. If the average tends… Click here to read more
Average “A single value which can represent the whole set of data is called an average”. If the average tends… Click here to read more
Arithmetic mean is the most commonly used average or measure of the central tendency applicable only in case of quantitative… Click here to read more
Example: The following data shows distance covered by $$100$$ people to perform their routine jobs. Distance (Km) $$0 – 10$$… Click here to read more
When calculating the arithmetic mean, the importance of all the items are considered to be equal. However, there may be… Click here to read more
Pros: It is rigidly defined It is easy to calculate and simple to follow It is based on all the… Click here to read more
The geometric mean is another measure of central tendency based on mathematical footing, like arithmetic mean. The geometric mean can… Click here to read more
The main properties of the geometric mean are: The geometric mean is less than the arithmetic mean, $$G.M < A.M$$… Click here to read more
Pros: It is rigidly defined and its value is a precise figure. It is based on all observations. It is… Click here to read more
Harmonic mean is another measure of central tendency and is also based on mathematics like arithmetic mean and geometric mean…. Click here to read more
Pros: It is based on all observations. It not significantly affected by the fluctuation of sampling. It is capable of… Click here to read more
Mode is the value which occurs the greatest number of times in the data. When each value occurs the same… Click here to read more
Advantages It is easy to understand and simple to calculate. It is not affected by extremely large or small values…. Click here to read more
Graphic Location of Mode Since mode is a positional average it can be located graphically by the following process: A… Click here to read more
Median is the most middle value in the arrayed data. It means that when the data are arranged, the median… Click here to read more
Median and other partition values can be located on the graph of the cumulative frequency polygon (Ogive Polygon). Suppose we… Click here to read more
There are three quartiles called the first quartile, second quartile and third quartile. The quartiles divide the set of observations… Click here to read more
Deciles Deciles are the partition values which divide the set of observations into ten equal parts. There are nine deciles:… Click here to read more