What is sample?

What is sample?

बेरीज

A sample is a set of data collected from a statistical population by a defined procedure.

The elements of a sample are called sample size or sample points.

Samples are collected and statistics are calculated from the samples

So that one can make inferences from the sample to the population.

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Concepts of Sampling

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पाठ 8: Sampling techniques and Statistical Inference - Exercise 8.1 [पृष्ठ १८५]

पाठ 8 Sampling techniques and Statistical Inference
Exercise 8.1 | Q 2 | पृष्ठ १८५

There is a certain bias involved in the non-random selection of samples.

Which of the following methods give better results and why?

Suppose there are 10 students in your class. You want to select three out of them. How many samples are possible?

Explain the procedure of selecting a random sample of 3 students out of 10 in your class, by using random number tables.

Explain in detail about simple random sampling with a suitable example

Explain the stratifi ed random sampling with a suitable example

Explain in detail about non-sampling error

State any three merits of stratified random sampling

Using the following Tippet’s random number table

Draw a sample of 10 three-digit numbers which are even numbers

Choose the correct alternative:

A ______ is one where each item in the universe has an equal chance of known opportunity of being selected