Population and sample data

What is the Population Data?

• Whenever we here the term Population the first thing that strikes in our mind is a large group of people.
• In the same way, in statistics population denotes a large group which having at least one common feature.
• In simple words, population means all elements understudy having one or more common characteristics.
• Population is not includes people only, but it may also includes animals, events, objects, buildings etc and it can be of any size.
• The number of elements or members in a population is known as “Population Size (n)”.

1. The population of all teachers working in a school.
2. The population of scooters produced by Honda Motor Company.
3. The population of taxpayers in India.

What is the Sample Data?

• A selected group of some elements from the population is known as the “Sample”.
• Selected sample should be such that it represent the population in all it’s characteristics.
• The units understudy are called “Sampling units“ and the number of units in sample is called “Sample size (n)“.

1. If we select higher secondary teachers only is a sample.
2. If we select Activa model from Honda motor company is a sample.
3. All the taxpayers in India is population and female taxpayer is a sample.

Conclusion

In spite of the above information, sample and population are related to each other i.e. sample is drawn from the population, so without population sample may not exist.