Question

12. State any three difference between primary data and secondary data. 3

13.

Draw an Ogive of the following and locate median.

Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70

Frequency 8 15 20 25 18 9 ​

Answer 1

Answer:

12. #primary data need more much time as compared to secondary

#primary data is investigated by investigator while secondary data collected from the primary data

#primary data is expensive where secondary data isn't.

Answer 2

Answer:

12. Primary data is the type of data that is collected by researchers directly from main sources while secondary data is the data that has already been collected through primary sources and made readily available for researchers to use for their own research.