Difference between revisions of "1980 Canadian MO Problems/Problem 4"
Ellentilburg (talk | contribs) (Created page with "== Problem == A gambling student tosses a fair coin. She gains <math>1</math> point for each head that turns up, and gains <math>2</math> points for each tail that turns up....") |
(No difference)
|
Revision as of 12:26, 2 March 2020
Problem
A gambling student tosses a fair coin. She gains point for each head that turns up, and gains
points for each tail that turns up. Prove that the probability of the student scoring [i]exactly[/i]
points is
.
Solution
See Also
1980 Canadian MO (Problems) | ||
Preceded by First Question |
1 • 2 • 3 • 4 • 5 | Followed by Problem 3 |