Question

Mike, Tania, Bill and Rachael each took many samples from the same population of students. The number of students in each of their samples is shown in the table below. Which person's sample means probably showed the least variability?

Answer 1

I think the answer would be D. Mike since he has the smallest number of students.

Answer 2

hmmm thats my guess too

Answer 3

since the smaller the sample the less likely to pick the outliers

Answer 4

so the less dispersion