Flashcards
Types of Data
Cards in this deck (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 data may be out of date
Information
- Description
- GCSE Statistics (Collecting Data) Flashcards on Types of Data, created by Ayo Aderemi on 05/06/2016.
- Created by
- Ayo Aderemi
- Views
- 1
- Tags
- Rating