# Stem-And-Leaf Diagrams

Mind Map by , created over 5 years ago

## GCSE Maths (Statistics) Mind Map on Stem-And-Leaf Diagrams, created by Olivia Brooklyn on 03/08/2014.

84
2
0
 Created by Olivia Brooklyn over 5 years ago
SAMPLING
Statistics Equations & Graphs
GCSE Maths: Statistics & Probability
History - Germany 1918 - 1945
GCSE REVISION TIMETABLE
GCSE Maths: Overview Note
Averages And Range
Frequency Tables
Line Of Best Fit
Statistics Key Words
Stem-And-Leaf Diagrams
1 When data is first recorded, it is called raw data and is unordered
2 Unordered data can be put into order to make it easier to read and understand. This is called ordered data
3 A stem-and-leaf diagram is a way of showing ordered data
3.1 The stem is the number on the left of the vertical line. The leaves are the numbers on the right of the vertical line.
4 Mode - most common entry
5 Find the median by counting from the start to the middle value
6 Find the range by subtracting the lowest value from the highest value
7 Find the mean by adding all the values and dividing by the total number of values in the table