data collection Flashcards
1
Q
define population
A
the whole set of items that are of interest
2
Q
define census
A
observes or measures every member of a population
3
Q
define sample
A
section of population from which data is collected from
4
Q
advantages of a larger sample size
A
larger the sample the more accurate
5
Q
define sampling units
A
the individual in a population
e.g. the individual residents
6
Q
define sampling frame
A
individuals of a population are named/numbered to form a list
e.g. a list of residents
7
Q
advantages of a census
A
- accurate results
8
Q
advantages of a sample
A
- less time consuming and expensive than the census
- fewer people have to respond
- fewer data to process
9
Q
disadvantages of a census
A
- time consuming/ expensive
- hard to process a large quantity of data
- the subject cannot be used as its been destroyed
10
Q
disadvantages of a sample
A
- data may not be as accurate
- sample may not be representative
