Question

leah is president of her schools chess club. she wants to choose 12 members of the club to take a survey. which method describes another way leah could select a random sample of chess club members? use a list of other clubs the members belong to. then, survey members who also belong to the robotics club. survey members who have won their last 3 chess games. survey members who volunteer to take the survey. use a computer to assign each member a unique id number. then, survey members whose number ends with 0 or 1.

Explanation:

A random sample should give each member an equal chance of being selected.

• The first option (using other clubs) targets a specific subset (robotics club members) which is not random for the chess - club population.
• The second option (those who won last 3 games) targets a specific performance - based subset, not random.
• The third option (volunteers) may have a bias as not all members may volunteer.
• The fourth option (using a computer - assigned ID with a rule about the last digit) gives each member an equal probability of being selected based on the ID numbering system.

Answer:

Use a computer to assign each member a unique ID number. Then, survey members whose number ends with 0 or 1.