Sir Francis Galton used this data set for understanding the (linear) relationship between the height of parent and its effect on the height of child.

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A data frame with 928 observations on the following 2 variables.

`child`

children's height

`parent`

parent's height

A scatter plot may be used for preliminary investigation of the kind of relationship between parent's height and their children. A simple linear regression model may also be built for quantifying the relationship.

http://en.wikipedia.org/wiki/Francis_Galton

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