Stem and Leaf Diagrams

Sample Stem and Leaf Diagrams questions

A few of the 14 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 13 marksGrade 3-4
   The stem-and-leaf diagram shows the ages of 10 people at a party. (a) How many people are aged over 30? (b) Find the median age.
   Show the worked solution

   (a) Ages over 30: 31, 36, 43 -- that's 3 people. A1

   (b) Listing all 10 ages in order: 14, 17, 19, 20, 22, 22, 25, 31, 36, 43. With 10 values, the median is the average of the 5th and 6th values: (22 + 22) $\div$ 2 = 22. M1

What are the common mistakes in Stem and Leaf Diagrams?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Misreads whether an inequalitys boundary is included or excluded

  Miscounted the boundary value -- check whether the boundary value itself counts

• Picks the wrong position when reading off the median

  Read off the wrong leaf position for the middle value (with 10 data points, the median is the average of the 5th and 6th values when listed in order)

Quick answers about Stem and Leaf Diagrams

How many Stem and Leaf Diagrams practice questions are there?

There are 14 self-marking GCSE and IGCSE Maths questions on Stem and Leaf Diagrams, written for AQA, Pearson, OCR, Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Foundation and Core tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Stem and Leaf Diagrams?

No. You can start practising Stem and Leaf Diagrams straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.