Bias.
Errors of definition .
Substition.
Arrithmetical errors.
In adequacy in size.
An inherent problem in using secondary sources of data is that the data may have been skewed or manipulated a bit. Primary sources of data are always more reliable than secondary sources.
Secondary data is data that was collected from someone else an already exists for a different purpose. Using secondary data is usually the easiest and cost effective way of gaining data for marketing.
Secondary use is using data for a purpose other than the purpose it was collected for.
primary information is the information/data that you collected and secondary information is the data/information that is collected by someone else but you are using it.
Three benefits of using secondary storage are that you can back up data, free up space on your primary storage, and more easily share data with other users. Secondary storage may be local to the computer or remote, such as with cloud storage.
External secondary data - data that is obtained outside the firm itself.
Secondary data is a data collected by someone other than the user. Secondary data for social science include censuses and organizational records.
relevance, consistency, method of collection used, validity, reasons for which the data were collected, reliability, completenes e.t.c
You can receive secondary data online from sources such as Censuses and qualitative research. You can learn more information about Secondary Data online at the Wikipedia.
Secondary data is data collected from other sources than your own such as reference books or the Internet.
When using secondary data, it's essential to evaluate the credibility and reliability of the sources to ensure the information is accurate and relevant. Check for potential biases in the data collection process and consider the context in which the data was gathered. Additionally, assess the timeliness of the data to ensure it reflects the current situation and is applicable to your analysis. Lastly, always provide proper citations to respect intellectual property rights.
primary data is where you get o fact off a computer or from a book secondary data is where you get a fact of someone and it might not be true