Flashcards
Types of Data
Flashcards do conjunto (7)
- 1What are the two types of data?Qualitative data - data that uses words
Quantitative data - data that uses numbers - 2What are the two types of quantitative data?Discrete data - data that can be counted
Continuous data* - data that can be measured
* Continuous data needs a level of accuracy because it is measured - 3What is a level of accuracy?The degree to which something is true
- 4How are the lower and upper bounds found?LB - Subtracting half the unit of accuracy from the number
UB - Add half the unit of accuracy to the number - 5How can data be categorised?It can be categorised by how it has been collected:
--> primary data - collected by you (or on your behalf)
--> secondary data - collected by someone else - 6What are the advantages and disadvantages of primary data?Advantages:
--> you can get exactly the data you need
--> the accuracy of the data is known
--> you know how the data is collected
--> it is up to date
Disadvantages:
--> it can take a long time
--> can be expensive if you are paying someone else to collect it on your behalf - 7What are the advantages and disadvantages of secondary data?Advantages:
--> quick way to get a large amount of money
--> cheap way to get a large amount of data
Disadvantages:
--> may not get exactly the data you need
--> it is unknown how the data was collected
--> may not know the accuracy of the data
--> data may be out of date
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- Descrição
- GCSE Statistics (Collecting Data) FlashCards sobre Types of Data, criado por Ayo Aderemi em 05-06-2016.
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- Ayo Aderemi
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