http://www.cut-the-knot.org/Probability/ConditionalRecurrence.shtml [2]
http://www.cut-the-knot.org/Probability/RuleOfSuccession.shtml [3]
Links[1] https://www.hootsgo.org/?q=node/6718 [2] http://www.cut-the-knot.org/Probability/ConditionalRecurrence.shtml [3] http://www.cut-the-knot.org/Probability/RuleOfSuccession.shtml
