Understand how introducing new values or removing existing values from a distribution affects a statistical measure, such as whether the median increases, decreases, or remains unchanged.

Quick explanation

Understand how introducing new values or removing existing values from a distribution affects a statistical measure, such as whether the median increases, decreases, or remains unchanged

• This point belongs to Transformations of data sets, especially Transformations of data sets outcomes.
• You need to be able to understand how introducing new values or removing existing values from a distribution affects a statistical measure, such as whether the median increases, decreases, or remains unchanged.
• The key ideas to know are Consider and Explain.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.