Question

marshawn wrote a survey that he will give to 10 friends in his math class. the survey includes the following 4 questions. which question is most likely to have variability in the answers?

how many students are in your math class?

how many science teachers work at your school?

how many quizzes have been given in your math class?

how many questions did you answer correctly on the last math quiz?

Explanation:

1. For "How many students are in your math class?", all friends are in the same math class, so the answer is likely the same (no variability).
2. For "How many science teachers work at your school?", they attend the same school, so the number of science teachers is fixed (no variability).
3. For "How many quizzes have been given in your math class?", since they are in the same math class, the number of quizzes given is the same (no variability).
4. For "How many questions did you answer correctly on the last math quiz?", different students will have different numbers of correct answers (high variability as performance varies).

Answer:

D. How many questions did you answer correctly on the last math quiz?