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Exercise

Groupby

Groupbys are an incredibly powerful and fast way to perform calculations, transformations, and filter your data. It follows the mantra of split-apply-combine where the dataset is split into multiple partitions based on unique values of a variable or variables, a function is applied on each partition separately, and all the results are combined together at the end.

Instructions 1/2

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Calculate the mean 'tip' for each unique value of 'sex'.