Stem-and-leaf diagrams (Edexcel GCSE Maths): Flashcards
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12 cards from this deck
Stem-and-leaf diagram definition
Stem-and-leaf diagram definition
Displays data keeping original values in order of size
Key advantage of stem-and-leaf diagrams
Key advantage of stem-and-leaf diagrams
Preserves original data values while organising visually
What stem represents
What stem represents
Tens or higher place values
What leaf represents
What leaf represents
Units (ones)
Purpose of key in diagram
Purpose of key in diagram
Shows what stem and leaf values mean
Essential step for final diagram
Essential step for final diagram
Arrange leaves in ascending order
Median definition
Median definition
Middle value when data arranged in order
Critical rule for finding median
Critical rule for finding median
Use complete value (stem+leaf), not just leaf
Mode definition
Mode definition
Most frequently occurring value
Range calculation formula
Range calculation formula
Highest value minus lowest value
Rule for calculating range
Rule for calculating range
Use actual data values, not just stems
Common calculation mistake
Common calculation mistake
Using stem values instead of complete values