All,
I'm gonna go with Yusupha Jow on this one. There is
no "probability" in this case, instead there is "certainty".
As Yus pointed out, there is definitely going to be two people with the same
birth month since there is only 12 months in the year and we have 13 people.
(probability greater than one).
Hey Yus, is the same Yusupha Jow, Gambia High
A-Levels class of '88?
Send a few bytes my
way!
Abdoulie A.
Jallow
"If you will tell
me why the fen
appears impassable, I then
will tell you why I think that
I
can get across it if I try."
I May, I Might I Must - by Marianne
Moore
Greetings:
The probability that
out of 13 people in a room, 2 will be born in the same
month is
13/24.
There are 78 ways of selecting groups of
two out of a total of 13. The
probability that any 2 people in any
selected group share the same month of
birth is 1/12 x 1/12 or 1/144.
Therefore
the probability that 2 people out of 13 will share the same
birth month is 78
x 1/144 or
13/24.
Peace!
Amat
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