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Exam (elaborations)
Stats 243 (Queen's) Questions & Answers
Sampling Unit - ️️The unit that is selected at random 
(e.g. If you randomly select 30 addresses for your question about voting preference, 
then the sampling unit is the address of a voter). 
Observation Unit - ️️The unit you collect data from. 
(e.g. asking the voter their preference, thus the individual is the observation unit). 
Sometimes the observation unit is the same as the sampling unit, and sometimes it is a 
subset of the sampling unit. 
Descriptive Statistics - ️️The set ...
Exam (elaborations)
STATS 243 Exam Questions And Answers
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STATS 243 Exam Questions And Answers 
Statistics - AnswersThe science of learning from data, and of measuring, controlling and 
communicating uncertainty. 
Course Ingredients: 
Study Design - AnswersDesigning observational and experimental studies. 
Consists of: 
- Scientific Question 
- Statistical Population 
- Study Design 
- Sampling Methods 
Course Ingredients: 
Descriptive Statistics - AnswersHow to describe the data in your sample ...