Maths Stats Chapter 1 Flashcards 0.0 / 5 ? MathematicsStatistics, averages and distributionsA2/A-levelEdexcel Created by: 13gpascoeCreated on: 29-10-18 20:00 Population Whole set of items that are of interest. 1 of 13 Census Observes or measures every member of a population. 2 of 13 Sample Selection of observations taken from a subset of the population. Used to find out info about population as a whole. 3 of 13 Sampling units Individual units of a population. 4 of 13 Sampling frame List of sampling units. 5 of 13 Simple Random Sample Every sample of size n has an equal chance of being selected. 6 of 13 Systematic Sampling When the required elements are chosen at regular intervals from an ordered list. 7 of 13 Quota Sampling Interviewer selects a sample that reflects the characteristics of the whole pop. 8 of 13 Opportunity Sampling Taking the sample from people available at the time the study is carried out and who fit the criteria you are looking for. 9 of 13 Quantitative Variables/Data V/D associated with numerical observations. 10 of 13 Qualitative Variables/Data V/D associated with non-numerical observations. 11 of 13 Continuous Variable V that can take any value in a given range. 12 of 13 Discrete Variable V that can only take specific values in a given range. 13 of 13
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