Editing Binomial distribution (section)

=== Poisson binomial distribution ===
The binomial distribution is a special case of the [[Poisson binomial distribution]], which is the distribution of a sum of {{math|''n''}} independent non-identical [[Bernoulli trials]] {{math|B(''p''<sub>''i''</sub>)}}.<ref>
{{cite journal
 | volume = 3
 | issue = 2
 | pages = 295–312
 | last = Wang
 | first = Y. H.
 | title = On the number of successes in independent trials
 | journal = Statistica Sinica
 | year = 1993
 | url = http://www3.stat.sinica.edu.tw/statistica/oldpdf/A3n23.pdf
 | url-status = dead
 | archive-url = https://web.archive.org/web/20160303182353/http://www3.stat.sinica.edu.tw/statistica/oldpdf/A3n23.pdf
 | archive-date = 2016-03-03
}}
</ref>