In weka workbench (workbench option for 3.8 or explorer option for older versions), load diabetes. arff dataset to answer the following questions.
(a) how many instances and attributes (including the class attribute) does this dataset have? [1 mark]
(b) how many classes are present in the dataset and how many instances are there for each class ? [2 marks]
(c) use histograms (with default settings) to show which age group has the highest number of samples?

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