A Statistics instructor wishes to know the average age (in month)of his 200 students.He decides to choose 25 students from the class and ask them for their age.All 200 names are put in a hat and 25 names are then chosen at random (without replacement).The average age of the students chosen is observed to be 231 months.The group of 200 students is known as what?

Question

Quizplus · Accepted Answer

The group of 200 students is the entire group of interest, therefore it is the population. Option A, sample, refers to a subset of the population, but in this case, all the students are the entire group. Option B, a census, is a complete enumeration of the population and in this case, only a subset was surveyed. Option D, population size, refers to the number of individuals in the population, not the population itself. Option E, sample size, refers to the number of individuals in a subset of the population, and again, all 200 students are the entire group, so this is not relevant.

A Statistics Instructor Wishes to Know the Average Age (In