Question
For a survey a village is divided into 5 lanes then each lane is sampled randomly is an example:
| A. |
Simple random sampling
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| B. |
Stratified random sampling
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| C. |
Systematic random sampling
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| D. |
All of the above
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Show Answer
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Correct Answer � B
Explanation
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Stratified random sampling
Random/probability sample: sample in which the researcher can specify the population known factor of any one element (same) in the population is included. So every person has an equal chance of selection in random sampling.
– Probability samples used in inferential statistics
– Non-probabilities samples used in only descriptive statistics type of probability sample (Random sample)
1. Simple random sample – All people have equal rights to be selected. The simplest type of random probability.
2. Stratified random sample – in it the population is 1st divided into relatively internally homogenous groups of strata from which random sampling are drawn.
Example: Village Population
3. Systematic sample – it involves selecting an element in a systematic way.
Example: Every 10th baby born in the area. Every 3rd person admitted to the hospital.
