Statistics is the science of collection and analysis of data . If you do not know about data , you never learn this science . So first of all you should know data and its main type .
Data means any fact , thing which we may count but logically we can explain these facts .
1. Qualitative data
Qualitative data includes honesty , poor , cleverness , sharpness etc . These are actually quality of human being but these can also explain in qualitative data .
2. Quantitative data
Quantitative data includes figure and numerical data which can compare with each other and analysis them and it is so easy for use that we can take some decision on these quantitative data because quantitative data is more useful in statistics than qualitative data .