The probability based on an event that has already occurred is 100%. If the event has occurred, it has occurred.
The probability of event A occurring given event B has occurred is an example of conditional probability.
Flashback
The defeat of the Spanish Armada.
World War 1
The probability based on an event that has already occurred is 100%. If the event has occurred, it has occurred.
Delaware Is The First State To Join The Union
The Vietnam War is the event that occurred in the Tonkin Gulf.
The constitutional convention occurred second.
The probability of event A occurring given event B has occurred is an example of conditional probability.
One major event in the history of Brazil occurred in 1945 when the country became a member of the United Nations. Another major event occurred in 1962 when Brazil won the World Cup. A third major event happened in 2011 when the country elected its first female president.
No memorable space event occurred on this day.
What important event occurred April 9th, 1865
What important event occurred April 14th, 1865
Flashback
The narrator ran
The constitutional convention occurred second.