Simple Random Sampling
Past Exam Question
There are 64 girls and 56 boys in a school. Explain briefly how you could take a random sample of 15 pupils using a simple random sample. (3)

Question

Accepted Answer

To take a random sample of 15 pupils from a school with 64 girls and 56 boys using simple random sampling, you can follow these steps: 1. **List the Population**: Create a complete list of all the pupils in the school. This means numbering each of the 64 girls and 56 boys, giving you a total of 120 pupils. 2. **Use a Random Selection Method**: You can use a random number generator or draw numbers from a hat. For example, if you have numbered all pupils from 1 to 120, you can randomly select 15 unique numbers from this range. 3. **Select the Pupils**: The pupils corresponding to the randomly selected numbers will be your sample. Ensure that each pupil has an equal chance of being selected, which is the essence of simple random sampling. This method ensures that your sample is representative of the entire population without bias. If you have any more questions or need further clarification, feel free to ask!

Sia