Transcription of Mean, Median, Mode, Range
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Mean, Median, Mode, Range
Mathematics Mean, median , Mode, Range Science and Mathematics Education Research Group Supported by UBC Teaching and Learning Enhancement Fund 2012-2013 D e p a r t m e n t o f C u r r i c u l u m a n d P e d a g o g y F A C U L T Y O F E D U C A T I O N Test Scores Best Practices When solving mean, median , mode and Range questions, it is often very helpful to rewrite the data from smallest to largest. 13, 13, 13, 15, 16, 16, 16 3 scores 3 scores median Both the median and mode become easy to pick out after arranging the data into groups. 20, 20, 20, 40, 40, 70, 80 3 2 1 1 Mode = 20 The Range can be found by subtracting the first data point from the last one: Range = 80 20 = 60 Best Practices II It is often not necessary to calculate the exact mean (average) of a data set to solve a lot of these questions.
When solving mean, median, mode and range questions, it is often very helpful to rewrite the data from smallest to largest. 13, 13, 13, 15, 16, 16, 16 3 scores data into groups. 3 Median scores Both the median and mode become easy to pick out after arranging the 20, 20, 20, 40, 40, 70, 80 3 2 1 1 Mode = 20 The range can be found by
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