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Description:

Boscovich data used to estimate the ellipticity of the earth. There are five measurements of the arc length of one degree of latitude taken at 5 different latitudes. See Koenker (2005) for further details and references.

Variables:

A data frame containing 5 observations on 3 variables

x

sine squared of latitude measured in degrees

y

arc length of one degree of latitude measured in toise - 56,700, one toise approximately equals 1.95 meters.

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References/Notes/Attributions:

References

Koenker, R. (2005), "Quantile Regression", Cambridge.

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