GCSE Secondary Maths Age 13-17 - Probability & Statistics: Stem and Leaf Diagram - Explained

The video tutorial explains how to create and order a stem and leaf diagram using the heights of 18 children as data. It covers identifying the smallest and largest data points, organizing the data into stems and leaves, and ordering the diagram. The tutorial also emphasizes the importance of including a key to explain the diagram's meaning.

What is the purpose of identifying the smallest and largest data points in a stem and leaf diagram?

• To determine the range of the data

• To calculate the average

• To find the median

• To identify outliers

When constructing an unordered stem and leaf diagram, where should the number 98 be placed?

• In the 100s row

• In the 90s row

• In the 80s row

• In the 110s row

What is the first step in ordering a stem and leaf diagram?

• Calculate the mean of the data

• List the data points in ascending order

• Add a key to the diagram

• Identify the smallest data point

Why is it important to include a key in a stem and leaf diagram?

• To show the total number of data points

• To explain what the numbers represent

• To calculate the range

• To identify the mode

In the ordered stem and leaf diagram, what does the number 84 represent?

• 84 children

• 84 centimeters

• 84 data points

• 84 leaves