Question 9
EasyOriginal questionA principal wants to know the average daily screen time of the 1,200 students in her school. She picks 60 students by drawing names at random from the full roll and finds that they average 3.2 hours a day.
What is the population in the principal's screen-time study?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
The population is the whole group the question is about.
She asks about her school's 1,200 students.
Worth noting
The 60 students are the sample drawn from the population.
- Concept
- Identifying the population
- Typical timeTypical
- 90 s
- Your timeYours
- —
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Ten questions from Sampling, Inference & the t-Test, at your own pace.