Descrbe Likelihood
Probability of Simple Events
Probability of Compound Events
Make Predictions
Miscellaneous Review
100
Spinner A: Describe an event that is certain.
What is getting a number 1-4 or getting a natural number less than 5.
100
Use Chart 1.
A number cube has sides 1 to 6. Ethan rolls the number cube 15 times and records his results. What is the experimental probability that her next roll will not be a 3? Write your answer as a fraction in simplest form.
P(3)=3/15 = 1/ 5 so P(not3)=4/5
100
Complete a tree diagram for spinning on a 3 section spinner 3 times.
Show Work
100
Without looking, Ryan pulls a marble from a bag that contains: 5 red, 25 blue, and 20 purple marbles. He records the color and returns the marble to the bag. If he repeats this 110 times, how many times can he expect to pull out a red marble?
5/50 = 1/10
1/10 * 111 = 11
11 times
100
Use the table to create an equation:
y = 1.5x
200
Spinner A: Describe an event that is impossible.
Rolling a 5 or a number greater than 4.
200
Use Spinner B to answer the question.
P(Blue or Red) = ?
P(blue or red) = 75%
200
What is the probabilty of getting section 2 at least twice on a three section spinner if you spin it three times?
7/ 27
200
A number cube has sides labeled 1 to 6. Valerie rolls the number cube 24 times. How many times can she expect to roll a 1 or a 2.
8 times
200
Jasmine ate x donuts out of a box of 12 donuts. Write an equation that shows how many donuts, y, are left.
12 - x = y
300
The probability of an event is 8/10. How can the likelihood of this event be described in words?
The event is likely to occur.
300
Use Spinner B to answer the question.
P(not purple) = ?
P(not purple) = 15/16
300
A taco truck is giving away free tacos to the first 10 customers. The tacos can come in flour or corn tortillas with 3 options of fillings. The tacos will be given out randomly. Describe a simulation that could be used to predict the taco you are likely to get.
Flip a coin for corn or flour. Roll a die for the filling, assigning 1 & 2 for one filling; 3 & 4 for a second filling; and 5 & 6 for the third filling.
300
The experimental probabilty of rain in a certain town is 15%. In the next 60 days, how many days can one expect rain?
9 days
300
Find the slope of the line with the following points.
(3, 6)
(5, 10)
(7, 14)
(10 - 6) / (5 - 3) = 4 / 2 = 2
400
Which of the following best describes the probability of picking a number divisible by 3 from a jar of papers labeled 1-12?
a.1
b.close to 1
c. close to 1/2
d.close to 0
4/12= 1/3
c. close to 1/2
400
Use Spinner B to answer the question.
P(not purple and not green) = ?
P(not purple and not green) = 7/8
400
Woodfield mall has 3 floors, 1, 2, and 3. Each floor has 10 stores (A, B, C, D, E, F, G, H, I, J). What is the probability that the chosen store will be store D and any floor above 1? Write your answer as a fraction in simplest form, a decimal rounded to the nearest hundredth, and a percent rounded to the nearest whole.
1/15, 0.067 --> rounded to 0.07, 7%
400
Amazon claims that 5% if it's orders are returned. Last week, there were 50,000 orders in our area. 3,000 were returned. Do you agree or disagree with Amazon's claim. Use numbers and words to justify your thinking.
I agree. In our area, 6% of orders were returned. Although 6% is slightly greater than 5%, the sample was only of our area and Amazon operates in many places.
400
Order these numbers from smallest to largest.
32
sqrt(10)
3
(4*2)
sqrt(16)
3, sqrt(10), sqrt(16), (4*2), 32
3, 3.16, 4, 8, 9
500
P(mean score> 95%) = ?
a. 0
b. 1/2
c. unlikely
d. likely
e. 1
c. unlikely - based on our data, we have only gotten 95% or above one time out of all of our tests
500
Does the outcome of a simple event effect the outcome of another simple event?
No - rolling a die once does not affect the probabilty of the outcome of rolling the die again
500
Hannah has 3 pairs of shoes, 6 tops, and 2 pairs of pants. How many outfits consisting of 1 pair of shoes, 1 shirt, and 1 pair of pants can she make? Show your thinking using a tree diagram.
36 outfits
500
There is a 20% chance of rain each week in Carpentersville. Ms. Sharma used a simulation to find the experimental probability of it raining in the next month. Each trial represents four weeks in a month. What's the probability it rains next month?
4/10 or 40%
500
A square has 4 equal sides. An equilateral triangle has 3 equal sides. The perimeters of the square and the equilateral triangle are equal.
One side of the square is equal to x + 1.
One side of the triangle is equal to 2x - 2.
Find x and find the perimeter of each shape.
x = 5
Perimeter = 24 units.