Tom reads that HS2 will link 29 stations. He decides to take a random sample of 5 of the stations where he can ask people for their opinions. Briefly describe a way Tom could achieve this.

A simple random sample ensures that every possible sample of size 5 has an equal chance of being selected. A practical way for Tom to do this is: 1. **Create a sampling frame:** Make a list of all 29 HS2 stations and assign a unique number to each one, from 1 to 29. 2. **Random Selection:** Use a random method to select 5 numbers. For example: - Write each number from 1 to 29 on identical pieces of paper, put them in a hat, mix them thoroughly, and draw out 5 pieces of paper. - Or, use a random number generator on a calculator or computer to generate 5 unique random integers between 1 and 29. 3. **Identify the Sample:** The 5 stations that correspond to the selected numbers become the sample for his study.