Question

A town hosts an Arbor Day celebration. Each of the 105 families attending gets to choose a sapling to take home as they leave. Michelle and Ari each design surveys in order to determine the average height of the saplings. Michelle samples the first 20 families leaving the celebration. Ari samples every fifth family leaving the celebration. Which best explains which student’s sample is likely to produce more valid results?

Answer 1

we would need a list of choices to better answer this question

but for now, try to think about whether taking the first 20 families or taking every 5th sample would produce a higher level of randomization