Practice

Practise until it sticks

Choose a topic, a skill or a difficulty. Calculation exercises have new versions with fresh numbers once you have solved them, so you can practise the method rather than memorise an answer.

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Application, difficulty 2 of 3

One row of a summary table

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Complete the returning customers' row of a summary table for basket_value_sar in the transactions dataset: the number of baskets, the median, and the IQR (type 7 quartiles). Give the median and IQR in SAR to 2 decimal places.

Data: transactions · Open in the lab to explore and calculate.