Working with Data (Edexcel A-Level Mathematics): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Purpose of interpreting data
Purpose of interpreting data
Analyse & draw meaningful conclusions from data
Key variables to identify in data context
Key variables to identify in data context
Independent and dependent variables
What bar charts compare
What bar charts compare
Frequency, count, or proportion of categories
Tallest bar in bar chart means
Tallest bar in bar chart means
Most preferred/highest value category
What histograms display
What histograms display
Distribution of continuous data across intervals
Symmetrical histogram shape indicates
Symmetrical histogram shape indicates
Normal distribution
What pie charts display
What pie charts display
Relative proportions of categories within a whole
What line graphs show
What line graphs show
Trends over time or continuous variables
What scatter plots show
What scatter plots show
Relationship between two continuous variables
Scatter plot: points rising left to right
Scatter plot: points rising left to right
Positive correlation
Scatter plot: points close to straight line
Scatter plot: points close to straight line
Strong relationship between variables
What box plots summarise
What box plots summarise
Median, quartiles, and potential outliers
Higher median in box plot indicates
Higher median in box plot indicates
Higher central tendency/middle value
Wider IQR in box plot means
Wider IQR in box plot means
Greater variability in data
Line graph: steepest increase indicates
Line graph: steepest increase indicates
Fastest rate of change