Statistics 0.0 / 5 ? StatisticsIntroduction to statistics ASAQA Created by: mayafranklinCreated on: 17-03-14 13:25 What is qualitative? Variables do not have a numerical value e.g. place of birth, colour of car, gender 1 of 12 What is quantitative? Variable do have a numerical value, they can be discrete or continuous 2 of 12 What is discrete? Variables take values which change in steps e.g. 0,1,2,3.. i.e. they can be counted 3 of 12 What is continuous? variables can take any value in an interval i.e. they are measured 4 of 12 what is primary data? this is data which has been collected for a specific investigation 5 of 12 what is secondary data? this is data published by the government and other organisations, not collected for a specific investigation 6 of 12 What is a population? it is all the possible data 7 of 12 what is a sample? is a part or selection of data 8 of 12 what is a parameter? is a numerical property of a population e.g the mean height of all adult females in the uk is a parameter 9 of 12 what is a statistic? a numerical property of a sample e.g. the mean height of the adult females in the sample 10 of 12 how can you avoid bias? by taking a random sample 11 of 12 what is a simple random sample? random samples selected without replacement 12 of 12
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