Every twenty-fifth person who ordered a subscription to a weekly news magazine was contacted by market researchers to complete an opinion survey. the researchers were employing a technique known as:

Random Sampling.

Explanation:

It is a method of sampling a population by selecting a sample unit based on chance, and also based on non-zero probability.

Random sampling is easier to use as it helps to get generalized samples from a large group.

There are 4 types of random sampling.

•Simple random sampling.

•Systematic random sampling.

•Stratified random sampling

•Cluster random sampling.

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if you have ask any question and if you have got the answer reply for your position there will be option for making a brain least answer you need to click click there and they can get the points in brain list main thing is that you need to choose those answer which answer you are you think that it is to you