Stats Unit 1 Flash Cards 3.5 / 5 based on 2 ratings ? StatisticsGCSEEdexcel Created by: Elizabeth RillieCreated on: 20-06-13 17:30 Quantitative Data Is the type of data that give numerical results 1 of 29 Qualitative Data Is the type of data that gives non-numerical results 2 of 29 Discrete Numerical Data Is the type of data that can only be whole numbers 3 of 29 Continuous Data Is the type of data that can take any value on a scale 4 of 29 Rounding Is when continuous data is taken to a more sensible unit 5 of 29 Population Is the thing that can be investigated/involved in an investigation` 6 of 29 Census Is when the whole population is used 7 of 29 Sample Is when the population is too big so a smaller amount is used 8 of 29 Simple Random Sampling Is when all in the population has an equal chance of selection 9 of 29 Stratified Sampling Is when the population is divided into sub-populations, so need to get equally represented 10 of 29 Cluster Sampling Is when the population naturally divides into groups. Some groups are chosen and observed 11 of 29 Quota Sampling Is when a certain number of people are interviewed, depending on certain combinations of characteristics 12 of 29 Systematic Sampling Is when every Nth person on the list is taken 13 of 29 Convenience Sampling Is when any convenient form of sampling is done 14 of 29 Primary Data Is when the data is collected for/by the person using it 15 of 29 Secondary Data Is when the data is collected by someone else 16 of 29 Surveys Is a questionnaire/set of observations 17 of 29 Pilot Surveys Is conducted on a small sample, to raise any issues in the questionnaire 18 of 29 Questionnaire Is when questions are used to collect data 19 of 29 Open Question Is when a question has no suggested answers 20 of 29 Closed Question Is when a question has a range of answers to choose from 21 of 29 Leading Question Is when a question leads someone to a certain answer 22 of 29 Post Interviews Is when a questionnaire is sent through the post 23 of 29 Telephone Interviews Is when phone calls are made to ask the questions 24 of 29 Face-to-Face Interviews Is when the interviewer approaches people to ask the questions 25 of 29 Before and After Experiments Is when the group is observed, then change happens, and then the group is observed again 26 of 29 Control Groups Is when one group is affected by the change and another group is used as a comparison 27 of 29 Matched Pairs Is when an individual from one group is paired with an individual from the other group. 28 of 29 Capture/Recapture Method Is usually used to estimate the number of organisms in a habitat 29 of 29
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