Give two examples each of sample, population and variable. - Vidyadip

Question

Give two examples each of sample, population and variable.

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Answer

Example 1: A study was conducted to know the average income of people in a village. The total number of person was 750. Out of these, 70 villagers selected and their average income was recorded. So, in this example:

Population is the number of total villagers which is equal to 750.
Sample is the 70 villagers whose average income was recorded.
Variable under study is the income of the villagers.

Example 2: In order to study the to record the level of sugar in the blood, blood sample of 1000 people was taken from 10,000 people. So, in this example

Population is the total number of people i.e., 10,000.
Sample is the 1000 people.
Variable is the sugar level.

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