ex0727: The Big Bang II

In Sleuth2: Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd Ed)"

Description

These data are measured distances and recession velocities for 10 clusters of nebulae, much farther from earth than the nebulae reported in case0701.

Usage

ex0727

Format

A data frame with 10 observations on the following 2 variables.

Cluster

name of the cluster of nebulae

Distance

distance from earth (in million parsec)

Velocity

recession velocity (in kilometres per second)

Source

Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.

References

Hubble, E. and Humason, M. (1931). The Velocity–Distance Relation Among Extra–calactic Nebulae, Astrophysics Journal 74: 43–50.

See Also

case0701

Examples

str(ex0727)

Example output

'data.frame':	10 obs. of  3 variables:
 $ Cluster : chr  "Virgo" "Pegasus" "Pisces" "Cancer" ...
 $ Distance: num  1.8 7.25 7 9 11 ...
 $ Velocity: num  890 3810 4638 4820 5230 ...

Sleuth2 documentation built on May 2, 2019, 7:01 a.m.