It is the value that appears the most often in a data set

It is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers. 

It is defined as the reciprocal of the average of the reciprocals of the data values.

It is the average value or mean which signifies the central tendency of the set of numbers by finding the product of their values.

This method involves randomly selecting a sample from the population without any bias.

This method involves dividing the population into subgroups or strata and selecting a random sample from each stratum.

This method involves selecting every nth member of the population after a random starting point is chosen.

It is a non-probability sampling technique where samples are selected from the population only because they are conveniently available to the researcher.

In this method, researchers select the samples based purely on the researcher’s knowledge and credibility.