Data in this example refer to 337 observations on the secondary association of chromosomes in Brassika; n , which is now the number of chromosomes, equals 3 and X is the number of pairs of bivalents showing association.
Source
Extracted from
Paul, S.R., 1985. A three-parameter generalization of the binomial distribution. Communications in Statistics - Theory and Methods, 14(6), pp.1497-1506.
Available at: doi:10.1080/03610928508828990
Examples
Chromosome_data$No.of.Asso #extracting the binomial random variables
#> [1] 0 1 2 3
sum(Chromosome_data$fre) #summing all the frequencies
#> [1] 337