Goal: To use segment and area models to find the probabilities of
events
You may recall that the probability of an
event is the ratio of the number of
favorable outcomes to the number of
possible outcomes.
P(event) =
favorable outcomes
possible outcomes
Sometimes
Finding Probability
you can useUsing
a geometric
Segments
probability model in which you let points
represent
P(event)outcomes.
= length of favorable segment outcomes
length of entire segment
If the
points of
a region represent
equallyFinding
Probability
Using Area
likely outcomes, then you can find
area of favorable
region
probabilities
by
comparing
areas.
P(event) = area of entire region
Assignment: pp. 404-7 #1-21, 23-25, 55, 56