types

Question 1

random sampling ad and dis

Answer 1

Advantages -
1. Can be used with large sample populations
2. Avoids bias

Disadvantages -
1. Depends on who you can stop or where the places are located.
2. Hard to be representative of the whole area.

Question 2

stratisfied sampling ad and dis

Answer 2

Advantages -
Improved Accuracy
Reduced Sampling Bias

disadvantages -
Complex to Organize
Risk of Errors

Question 3

systematic ad and dis

Answer 3

ad
Simple and Quick to Implement
Samples are Evenly Distributed

dis
Patterns Can Be Predicted
Unequal Selection is Possible

Question 4

secondary ad and dis

Answer 4

ad
Easy to access
Low cost or free

dis
Data may be biased
Data may be out of date

Question 5

primary ad and dis

Answer 5

ad
It is up to date
Know that the data is reliable and valid

dis
Time-consuming
May need specialist equipment

Question 6

quantitive ad and dis

Answer 6

ad
Possible to have a larger sample size
Information can often be collected quickly

dis
The meaning behind the results is not clear
Human error or equipment error can lead to mistakes in measurement

Question 7

qualitative ad and dis

Answer 7

ad
More in-depth than quantitative data
More valid than quantitative data

dis
Low reliability
Time-consuming