Which of the following is/are advantages of sampling?

Sampling has several advantages:

1. Convenience and easy to use: Sampling requires fewer resources, time, and effort compared to studying the entire population.

2. Highly representative of the population: Properly designed and executed sampling methods can accurately reflect the characteristics of the entire population.

3. Highly representative of the strata: Stratified sampling ensures that specific subgroups or strata within the population are adequately represented, providing more precise results.

Thus, all of the options are correct.