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inst/snippet/socks.R
In fastR: Data sets and utilities for Foundations and Applications of Statistics by R Pruim
8*5*4 / choose(17,3) # 1 sock of each kind means no pairs
1 - (8*5*4 / choose(17,3)) # so this is prob of getting a pair
# or do it this way
( choose(8,2)*9 + choose(5,2) * 12 + choose(4,2) * 13 +
choose(8,3) + choose(5,3) + choose(4,3) ) / choose(17,3)
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fastR documentation built on May 2, 2019, 5:53 p.m.
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8*5*4 / choose(17,3) # 1 sock of each kind means no pairs
1 - (8*5*4 / choose(17,3)) # so this is prob of getting a pair
# or do it this way
( choose(8,2)*9 + choose(5,2) * 12 + choose(4,2) * 13 +
choose(8,3) + choose(5,3) + choose(4,3) ) / choose(17,3)
Try the fastR package in your browser
Any scripts or data that you put into this service are public.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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