📜  主要和次要数据之间的差异

📅  最后修改于: 2021-09-08 16:20:13             🧑  作者: Mango

1. 主要数据:
当一个机构或研究人员第一次从头到尾收集数据时,这种数据称为原始数据,它是原始数据,即最先完全更新的数据,称为原始数据。它是从头开始收集大量资金用于收集原始数据。同时,也需要人力,即也需要人。

2. 二手资料:
二手数据是机构或研究人员已经收集的数据,新研究人员会生成有关使用这些已收集数据的新信息。例如,如果您已经拥有印度的人口数据,那么您可以轻松找出您所在城市的识字人口百分比和文盲百分比,但是您已经从印度的人口数据中收集了该数据 因此,此数据将称为辅助数据。

主要和次要数据之间的差异:

S.NO Primary Data Secondary Data
1. Primary data is the first data collected by a researcher for the first time. Whereas secondary data is a data that is already collected by someone earlier.
2. Primary data is called real-time data. While this is not real-time data, it is related to the past.
3. The process is very much involved in collecting primary data. While collecting secondary data it does not involve much process but rather quickly and easily.
4. Primary data is cost effective. While it is economical.
5. The primary data takes long time for collection. While secondary data takes shorter time than primary data for collection.
6. Primary data is available in crud form. While it is available in processed or refined form.
7. Primary data is more accurate than secondary data. While it is less accurate than primary data.
8. Primary data is more reliable than secondary data. While secondary data is less reliable than primary data.
9. There is also difficulty in collecting data. While there is no difficulty in collecting data.