Define simple random sampling.

Choose the correct answer below.

1. Simple random sampling is the process of using chance to select individuals from a population to be included in the sample. The sample is then called a simple random sample.
2. A sample of size n from a population of size N is obtained through simple random sampling if every possible sample of size n has an equally likely chance of occurring. The sample is then called a simple random sample.
3. Simple random sampling is the process of obtaining a sample of size n from a population of the same size n. The sample is then called a simple random sample.
4. Simple random sampling is the process of selecting individuals from a population using a convenient sample. The sample is then called a simple random sample.