The probability of December 3 falling on a Friday is 1/7.
3 December 1971 was a Friday.
December 3 1948 was on a Friday.
December 3 1937 was a Friday.
December 3 2010 was a Friday.
December 3, 1993 fell on a Friday.
Friday
Friday
December 3rd, 2004 fell on a Friday.
It was a Friday.
Since there are seven days of the week, December 3 (or any other date) will fall on a Friday once every seven years, on average.
If a 31-day month starts on a Friday, Saturday or Sunday it will have 5 Sundays; if not it will have 4. So the probability is 3/7.
The Fable of Friday the 13th - 1922 was released on: USA: 3 December 1922