What is quantitative data
Data to do with numbers
What is qualitive data?
Data to do with peoples opinions/feelings
What is primary data
Data that an indivdual gets themself
E.g how many cars go over a bridge in 5 mins
What is secondary data?
Data you get from someone els
What is random sampling?
Collecting data at random
What is systematic sampling
Collecting data at specific intervals
What is stratified sampaling
Collecting data at different groups of a population to ensure fair representation,or reducing bias