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Relative frequency of class

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For the below question I come up with a range of 13 (66-40=13) and a width of 3 (13/5=2.6,, round up to 3). My width range is wrong because I'm coming up with data that does not find any matching answer. What am I doing wrong?

Question: The following data set contains the heights (in inches) of 20 students in a high school Geometry class. Construct a frequency distribution using 5 classes. Which table below shows the relative frequency of each class?

40, 52, 46, 61, 53, 56, 48, 49, 52, 52, 54, 58, 62, 64, 65, 66, 62, 43, 52, 48

Reference no: EM132065865

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