9-1 Simple Events
February 3
A bag contains 7 blue, 5 purple12 red, and 6 orange
marbles. Find the probability of each event.
P(purple)
P(red or orange)
9-3 Counting Principle
February 7
Identify the choices for events M and N that do not result
in the same number of outcomes as the other two.
Explain your reasoning.
P(not blue)
9 drinks,
8 desserts
18 shirts, 4 pants
10 groups,
8 activities
Find the mean, median, mode, and range for the set of
data: 7, 9, 11, 5, 7, 20
Order each set of numbers from least to greatest.
27%, 1/5, 0.22, 20.1
9-2 Sample Spaces
February 6
List all of the possible pairs that could be created from
the two categories.
Julia
Keith
Antoine
Isabel
Greg
Find each number. Round to the nearest tenth if
necessary.
43% of 266
17% of 92
25% of 44
9-4 Permutations
19
3
, 88%, 0.85, 4
20
February 8
Find all of the possible ways to arrange Math, Science,
and Language Arts.
Find the number of outcomes if you can choose from 8
kinds of bagels, 3 toppings, and 4 beverages.
Review
February 9
9-5 Combinations
Today’s Special
1. A number cube is rolled, what is the probability
that you would get a number that is not greater
than 4.
2. At a dinner a customer can choose from eggs or
pancakes as an entrée and from ham or sausage
as a side. List the possible choices of one entrée
and one side.
Large two-topping pizza for $14.99
Toppings
Pepperoni
Sausage
Green Peppers
Onions
Mushrooms
Create a list of all of the permutations of toppings taken
two at a time. Cross out pizzas that are the same as
another pizza. How many pizza choices are there?
Estimate:
1
7
+
10
8
3. A certain car model comes in black, white, red or
silver with an interior color or gray or tan, and an
automatic or manual transmission. What is the
probability that a randomly selected car will have a
black exterior, tan interior, and manual
transmission?
4. How many ways can 6 swimmers come in first,
second, or third place?
February 10
Combinations
5
1
−9
12
February 13
Three cheerleaders will be randomly selected to
represent the squad at a game. If there are 12
cheerleaders, find the probability that the three members
chosen will be Kameko, Lynn and Tory.
Four students are to be chosen from a roster of 9
students to attend a science camp. In how many ways
can 4 students be chosen?
9-7 Theoretical & Experimental Probability
February 14
Compare and contrast theoretical and experimental
probability.
9-8 Compound Events
February 16
A jar contains 8 white marbles, 4 green marbles, and 2
purple marbles. If Darla picks one marble from the jar
without looking, what is the probability that it will be
white or purple?
What is the probability that she will pick a green marble
AND a purple marble?
Write each fraction as a percent:
Evaluate each expression if a = 6, b = -4, and c = -3
4
11
7
39
5
20
8
50
Theoretical & Experimental Probability
9c
February 15
A spinner with three equal-sized sections marked A, B,
and C is spun 100 times.
1. What is the theoretical probability of landing on A?
2. The results are shown
here, what is the
experimental probability
of landing on A?
Landing on C?
Section Frequency
A
24
B
50
C
26
-8a
2bc
5b2
Review
February 21
Allison is doing
laundry for her family
and decides to count
all the T-shirts. She
creates the graph
below to show how
many T-shirts of each
color her family has
placed in the laundry
1. Allison’s brother wants either a blue or a green tshirt. What is the probability that he would randomly
pick one out of the laundry?’
Marbles were randomly drawn from a bag one by one.
After each draw, the color was recorded, the marble was
returned to the bag, and then the next marble was drawn.
The results are recorded below.
4. What is the theoretical probability that a marble
randomly drawn from the bag will be red?
5.
What is the experimental probability that the
marble randomly drawn from the bag will be red?
6.
What is the experimental probability that the
marble will be either black or purple?
2. What is the probability that Allison will not pick out a
yellow shirt?
Amanda flips a coin and spins the spinner.
3. What is the probability that she will get heads and a
3?