Next: Continuous random variables 9/30
Up: Basic Concepts
Previous: Determination of probabilities 9/29
Example:
Toss a coin until heads comes up.
Looking at the tree diagram, we see that P(1)=1/2,
P( 2 )=1/4, P(3)=1/8........
The distribution function in this case is:
m(i)=1/2i
But we have to check that
What is the probability that heads turns up after
an even number of tosses?
Susan Holmes
1998-12-07