Categorical data, describes information descriptively rather than numerically., Numerical data, represent values that can be measured and put into a logical order., Data, is the study of collecting, organising, presenting, analysing and interpreting data., Discrete data, can be counted., Continuous data, can be measured., Frequency distribution table, has 3 columns. I Score I Tally I Frequency I, Frequency , is the number of times a result or piece of data occurs., Class intervals, are used when data contains too many numerical values., Mean, the average value, Median, the middle score when the data values are ordered, Mode, the most common data value, Range, the difference between the largest and smallest data values, Primary data, data that you have collected yourself, Secondary data, data that has already been collected by someone else, Outlier, an extreme value in a data set, Cluster, a group of values around a particular value.
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Statistics Yr 7
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