Which of the following describes a correct process for creating a random sample of size 20 from a numbered list of 10,000 individuals? Check all that apply.

• Use a random number generator to generate 20 unique random numbers between 1 and 10,000
• Ask a person to choose 20 individuals from the list in a way that feels completely random.
• Choose 20 evenly-spaced numbers from the list (spaced by 500).
• Use software to sort the list in a randomized order. Then take the top 20 individuals in the list.

Divide the list into 20 subgroups of 500 individuals each, starting with the first 500, then the next, etc. Then use a random number generator to choose an individual from each list.