Data Visualisation Flashcards by Alex Attryde

Q

Bar plots

A

categorical data
categories on x-axis, frequencies on y-axis
distributions across different locations

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Q

Limitations of bar plots

A

categorical data only- discrete categories, but cannot cope with continuous data

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Q

Histograms

A

shows frequency within specified ranges
bins= divides data into intervals to identify clusters and gaps
frequencies= indicate how often data points fall into each bin- highlighting common values or outliers
ranges= show data spread or variation- identifying areas of extreme or minimal change

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Q

What do histograms test for

A

normal distribution/ normality

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Q

A

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Q

Predictability of Normal distribution

A

most data points cluster around the average (mean)

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Q

A

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