The harmonic mean of a set of observations is the reciprocal of the arithmetic mean of the reciprocal of the…
Geometric mean is defined only for non-zero positive values. Therefore in order to use geometric mean all the observations must…
Following are some of the important properties of arithmetic mean, which are elaborated with the help of simple problems. Problem:…
If all the values of the data are not equally important, a weighted arithmetic mean is calculated after assigning appropriate…
In case of frequency distribution the raw data is arranged by intervals having corresponding frequencies. So if we are interested…
Arithmetic mean is the sum of the values divided by the number of values in the raw data. Arithmetic mean…
The cumulative frequency divided by the total frequency is called relative cumulative frequency or percentage cumulative frequency. It is used…
Cumulative frequency distribution shows the number of observations which fall below or above in a given class interval. If the…
Frequency of a class divided by total frequency of all classes is called relative frequency. Relative frequency is expressed in…
Now we know about class interval, class limits, size of class interval, frequency distribution, class boundaries and mid class. On…