Download Simple and Compound Probability Practice 1 Name: As you work on

Simple and Compound Probability Practice 1
Name:
As you work on the problems, ask yourself these questions: Is there one event or more than one
event? Are the events independent or dependent on each other? This information will help you
set up the problem correctly.
1) A dresser drawer contains one pair of socks of each of the following colors: blue, brown, red,
white and black. Each pair is folded together in matching pairs. You reach into the sock drawer
and choose a pair of socks without looking. The first pair you pull out is red - the wrong color.
You replace this pair and choose another pair. What is the probability that you will choose the
red pair of socks twice?
2) A coin is tossed and a single 6-sided die is rolled. Find the probability of landing on the
head side of the coin and rolling a prime number on the die.
3) A bottle contains 8 marbles: 3 are red and 5 are puce. You are to take a marble from the
bottle without looking. What is the probability that you will pick a red marble?
4) A jar contains 3 red, 5 green, 2 blue and 6 yellow marbles. A marble is chosen at random from
the jar. You keep it, and choose a second marble. What is the probability of choosing
both marbles of the same color?
5) Melissa spins the spinner shown below. (Assume all the regions are the same size.)She notes
the result and then spins the spinner again. What is the probability that she spins a red and then a
blue? P(red, blue)
7
12
24
144
A]
B]
12
144
C]
1
144
D]
6) Jacob buys a box of candy that consists of six chocolate pieces, four fruit-flavored pieces, and
two mint pieces. He selects three pieces of candy at random, without replacement.
a) Calculate the probability that the first piece selected will be fruit flavored and the other two
will be mint.
b) Calculate the probability that all three pieces selected will be the same type of candy.