Data Collection (HSC SSCE Mathematics Standard): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the three key steps in data collection?
What are the three key steps in data collection?
Decide info needed, find it, gather it
Which quality standard means data is free from errors and correctly measured?
Which quality standard means data is free from errors and correctly measured?
Accurate
What defines primary sources of data?
What defines primary sources of data?
Collecting data directly yourself
Which is an example of secondary data?
Which is an example of secondary data?
Using Australian Bureau of Statistics data
What does a census collect data from?
What does a census collect data from?
Every single member of a population
What is a main advantage of using a sample over a census?
What is a main advantage of using a sample over a census?
Much cheaper and quicker to complete
What characterises a random sample?
What characterises a random sample?
Every member has equal selection chance
What happens first in stratified sampling?
What happens first in stratified sampling?
Population divided into categories
What characterises systematic sampling?
What characterises systematic sampling?
Selection at regular intervals
What is a major disadvantage of self-selected samples?
What is a major disadvantage of self-selected samples?
High potential for bias