Data Presentation (Edexcel A-Level Mathematics): Flashcards
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Practise the cards
15 cards from this deck
Purpose of data presentation
Purpose of data presentation
Organize & display data clearly to make it easier to interpret & analyze
Frequency tables function
Frequency tables function
Summarize how often values or ranges occur in dataset
Contingency tables purpose
Contingency tables purpose
Show relationships between two categorical variables
Bar charts data type
Bar charts data type
Categorical data (frequency, count, or proportion)
Histograms key features
Histograms key features
Continuous data, adjacent bars, intervals (bins)
Pie charts display
Pie charts display
Proportion of whole/relative proportions of categorical data
Line graphs typical use
Line graphs typical use
Show trends over time
Scatter plots purpose
Scatter plots purpose
Display relationship between two continuous variables
Box plots show
Box plots show
Median, quartiles, outliers; compare distributions
Cumulative frequency graphs use
Cumulative frequency graphs use
Estimate medians, quartiles, and percentiles
Stem-and-leaf plots advantage
Stem-and-leaf plots advantage
Retain original data values while showing distribution
Best charts for categorical data
Best charts for categorical data
Bar charts and pie charts
Best graphs for continuous data
Best graphs for continuous data
Histograms and line graphs
Interpreting histograms focus
Interpreting histograms focus
Shape of distribution (skewness, peaks, spread)
Interpreting scatter plots focus
Interpreting scatter plots focus
Pattern of points (positive, negative, or no correlation)