Question

The means of the grade point averages of four samples taken from a population of students are shown in the table blow. Which of these is most likely closest to the mean grade point average of the population?

Answer 1

Given the shown table

a sample size of

10 has a sample mean of 3.51

20 has a sample mean of 3.42

30 has a sample mean of 3.39

40 has a sample mean of 3.34

since a sample of 40 is the biggest sample is closest to the population

then it's most likely that the mean grade in a sample of 40 is closest to the population

Correct answer

option D. 3.34