Statistics Quest

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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Practice, difficulty 1 of 3

A summarising workflow

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Put the steps for summarising a numeric variable for a report in order.

Put the steps in order (use the arrows)

  1. 1Check the data: count n and the missing values, and look for impossible values
  2. 2Round sensibly and present them with units, n and the method used
  3. 3Choose measures of centre and spread that suit the shape
  4. 4Plot the distribution (histogram or box plot) and note its shape
  5. 5Compute them at full precision