Answers Statistics Practice ExamQuestion 29

29

practice examMultiple Choice

Practice Exam

Question 29 • Statistics

Which method describes an observational study?

Answer

A

Method 2 is an observational study because students can choose to participate in the music lessons.

B

Method 1 is an observational study because past data are collected and analyzed.

C

Both methods are observational studies because both include students who do and do not play a musical instrument.

D

Method 2 is an observational study because two city schools are chosen to participate.

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