SOLUTION: A) the 1300 total students enrolled There are 1300 students taking an introductory class, and would like to know the proportion of these students that are freshmen. We draw a ra

Algebra ->  Probability-and-statistics -> SOLUTION: A) the 1300 total students enrolled There are 1300 students taking an introductory class, and would like to know the proportion of these students that are freshmen. We draw a ra      Log On


   

Question 1199142: A) the 1300 total students enrolled
There are 1300 students taking an introductory class, and would like to know the proportion of these students that are freshmen. We draw a random sample of size 100. We ask each of these 100 students whether they are freshmen. We then we find the proportion in this sample that are freshmen.
What is the parameter?
One of the following answers is correct. Which one is the correct answer?
A) the 1300 students enrolled

B) the 100 students selected
C) the proportion of students in the sample that are freshmen.
D) the proportion of students in the population that are freshmen
Answer by textot(100) About Me  (Show Source):
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**The correct answer is D) the proportion of students in the population that are freshmen.**
* **Parameter:** A parameter is a numerical characteristic of the entire population.
In this scenario:
* The population consists of all 1300 students taking the introductory class.
* The parameter of interest is the true proportion of freshmen among all 1300 students.
The other options are not parameters:
* **A) the 1300 total students enrolled:** This is the population size, not a numerical characteristic of the population.
* **B) the 100 students selected:** This is the sample, not a characteristic of the population.
* **C) the proportion of students in the sample that are freshmen:** This is a sample statistic, not a parameter.