week nine Flashcards by kasia watkinson | Brainscape

Q

how do we present categorical data

A

bar charts

pie charts

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Q

how do we present numerical data

A

histograms

box plots

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Q

the correlation coefficient

A

· A correlation coefficient measures the closeness with which the variable pairs fit a straight line

shows direction and strength of the correlation
+1.0 means a strong positive correlation
-1.0 means a strong negative correlation

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