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(b) Construct a frequency distribution for the data provided below using 20 to less than 30 as the first class. Approximate the sample mean and

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(b) Construct a frequency distribution for the data provided below using "20 to less than 30" as the first class. Approximate the sample mean and standard deviation from the frequency distribution. 1.5 marks Bin Frequency 20 30 40 UD JUIA 50 (a) Draw a relative frequency histogram using the data above. 1 mark

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