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Worked examples

Averages, tables and charts

One sheet for each type of problem, with several worked examples of increasing difficulty: first the computation, then the explanation in words. Each sheet starts with links to the theory it uses.

• 1Frequenze assolute, relative e percentuali
• 2Media aritmetica
• 3Media ponderata e media da una tabella
• 4Mediana e moda
• 5Dato mancante, dato aggiunto e dato tolto
• 6Campo di variazione, varianza e scarto quadratico medio
• 7Tabelle a doppia entrata
• 8Lettura di istogrammi, diagrammi a torta e diagrammi cartesiani