Flashcards
1.1 Primary Data
Flashcards do conjunto (13)
- 1what is data?the term given to all observations and measurements that can be used to describe something
- 2what is qualitative data?data that can only be described in words
- 3what is quantitative data?measurements that are written in numbers
- 4what is primary data?data that you find yourself
- 5what is secondary data?data that comes from the work of other people
- 6difference between mistakes and errorsmistakes can be avoided if you take a little more care and errors are unavoidable
- 7parallax errorwhen you read the measurement at a slight angle
- 8reading errorwhen the measurement falls between the markings of a measuring device and u need to estimate ur measurement. Different people will estimate slightly different measurements
- 9instrument errorwhen the instrument is faulty and doesn't give the right readings
- 10human reflexeveryone has different reflex times so everyone will measure times slightly differently while using a stopwatch
- 11zero errorsif the instrument doesn't read zero, then everything you measure will be a little out
- 12define outliersobvious mistakes that are very different from the other measurements
- 13how do you improve the accuracy of your data?compare your measurements , remove the outliers and then find the average of the remaining measurements
Informações
- Descrição
- FlashCards sobre 1.1 Primary Data, criado por minaal imran em 27-04-2017.
- Criado por
- minaal imran · abr 2017
- Atualizado
- 27 abr 2017
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- 3
- Avaliação