Maths Keywords - Collecting and recording Data
- Created by: Khristine
- Created on: 02-01-12 20:15
Fullscreen
- Statistics: An area of mathematics concerned with collecting and interpreting data.
- Statistical problem-solving process: Form an idea to be tested - the hypothesis -> Collect relevant data -> Process and represent the data ->Calculate summary statistics -> Draw a conclusion
- Data: The information that has been collected
- ----Primary: Data that has been collected by the person who is going to use it
- ----Secondary: Data that has been collected by somebody else
- ----Qualitative: Data described in words
- ----Quantitative: Data given as a numerical value
- ----Discrete: Quantitative data that can only take certain numerical values
- ----Continuous: Quantitative data that can take any numerical value
- Population: The whole group of people you wish to find something out about.
- Sample: A select number of people from the population that can be surveyed to represent the total population.
- Biased sample: A sample that does not truly represent the population.
- Random sample: A sample that has given every member of the population an equal chance of being chosen.
- Strata: Non-overlapping groups within a population that share similar characteristics.
- Stratified sample: A sample…
Comments
Report