Name ________________________________________________Period ________
MATH 7 - 18.5 Find the Probability of Independent Events
1) A restaurant offers banana, blueberry, and plain
pancakes with either maple or berry syrup. What
is the probability of randomly getting blueberry
pancakes with maple syrup?
4) Karl tosses a coin twice. What is the probability of
randomly getting heads twice in a row?
1b) What is probability of getting banana pancakes
with any kind of syrup?
4b) What is the probability of randomly getting a tail
first and then a head?
1c) What is probability of getting flavored pancakes
(not plain) with any kind of syrup?
6) A six sided die is rolled twice. What is the
probability of getting a 5 on the first roll and a 6 on
the second roll?
2) A restaurant offers ham, turkey, chicken, and
corned beef sandwiches with wheat, rye, or white
bread. What is the probability of randomly getting
a turkey sandwich on rye bread?
6b) What is the probability of getting a 5 twice in a
row?
2b) What is probability of ham or turkey with wheat
bread?
6c) What is the probability of getting a 1 or 2 on the
first roll and a 1 or 2 on the second roll?
3) The fair was giving away kitties in three different
sizes and three different colors. What is the
probability of randomly getting a medium pink
kitty?
6d) What is the probability of getting a 4, 5, or 6 on
the first roll and a 1 or 2 on the second roll?
3b) What is probability of getting a large kitty in blue
or pink?
Concept Check
Circle all the correct responses.
Test Preparation
Circle the correct response. Show your work.
Circle the paths that involve throwing two tails.
Barry needs to roll a 5 or 6 twice in a row to win a game.
What is his probability of winning?
Head
Head
Head
Tails
Tails
Head
Tails
Tails
Head
Tails
Head
Tails
Head
a)
2
1
1
1
≈ 67% b) = 25% c) = 50% d) ≈ 11.1%
3
4
2
9
Tails
More Challenging
A six sided die is rolled twice. What is the probability
of getting an even number on the first roll and an odd
number on the second?
Mathematical Reasoning
A six sided die is rolled twice. What is the probability of
getting an even number on the first and second roll?
Why is this answer the same probability as the "More
Challenging" Question?
Review
A juice bar offer banana and orange smoothies in
small, medium and large. Draw a tree diagram to
show all the possible combinations.
Review
A cafeteria offers ham, turkey, cheese, and peanut butter
sandwiches with white or rye bread. . Draw a tree
diagram to show all the possible combinations.