2.
Use the counting techniques from the last chapter. A bag
contains two red marbles, four green ones, one fluorescent pink
one, four yellow ones, and two orange ones. Suzan grabs three at
random. Find the probability of the indicated event.
She gets all the red ones, given that she gets the fluorescent
pink one.
3.
Use the counting techniques. A bag contains two red marbles,
three green ones, one fluorescent pink one, three yellow ones, and
four orange ones. Suzan grabs four at random. Find the probability
of the indicated event.
She gets one of each color other than fluorescent pink, given
that she gets the fluorescent pink one.
4.
Draw an appropriate tree diagram, and use the multiplication
principle to calculate the probabilities of all the outcomes. HINT
[See Example 3.]
There is a 30% chance of rain today and a 40% chance of rain
tomorrow. Assume that the event that it rains today is independent
of the event that it rains tomorrow. What is the probability that
there will be no rain today or tomorrow?