Data Collection Flashcards
1
Q
What is a population?
A
Population is Whole set of items that are of interest
2
Q
What is a sample?
A
Sample is A subset of the population intended to represent the population
3
Q
What is a sampling unit?
A
Sampling units are Each individual thing in a population that can be sampled
4
Q
What is a sampling frame?
A
Sampling frame is a list where sampling units go a population are individually named or numbered
5
Q
What is a census?
A
A census is data collected from the entire population
6
Q
Advantages of a census
A
- It surveys lots of people
- Should give a completely accurate result
7
Q
Disadvantages of a census
A
It is time consuming and expensive
Can’t be used when testing involves destruction
Large volume of data to process
8
Q
Advantages of a sample
A
It is cheaper
Quicker
Less data to process
9
Q
Disadvantages of a sample
A
- It may not be fully representative of the whole population
- Data may not be accurate
- Data may not be large enough to represent small sub groups
