Likelihood
Simple Probability (Single Event)
Compound Probability (Multiple Events)
Probability Predictions
Random
100
What probability number AND percent represents the likelihood word: IMPOSSIBLE?
0 and 0%
100
There are 20 marbles in a jar. State the probability as a simplified fraction, decimal, and percent.
P(RED)
7/20 = 0.35 = 35%
100
What is the probability spinning of spinning blue and rolling a 3? Write answer as a simplified fraction.
P(blue, 3)
Note: All sections of the spinner are divided equally into 5 sections.
1/5 x 1/6
ANSWER: 1/30
100
There are 80 marbles in a bag. The probability of randomly choosing a blue marble is 7/20. How many of the marbles are blue?
Write your answer in a complete sentence.
Possible Set Up: 7/20 = ?/80
Answer: 28 marbles are blue (must have words)
100
A standard number cube is rolled. What is the probability of rolling a number less than or equal to 2?
1/3 = 0.33 = 33%
200
What probability number AND percent represents the likelihood word: CERTAIN?
1 and 100%
200
There are 18 tokens in a bag.
What is the probability of randomly choosing...
P(2 or 10): State the probability as a simplified fraction, decimal, and percent.
1/6 = 0.167 = 16.7%
200
What is the probability spinning of NOT spinning blue and NOT rolling a 3? Write answer as a simplified fraction.
P(NOT blue, NOT 3)
Note: All sections of the spinner are divided equally into 5 sections.
4/5 x 5/6 = 20/30
ANSWER: 2/3
200
In a bag of mystery popsicle sticks, the probability of picking an orange stick is 0.05. If you choose an orange popsicle stick 15 times, how many total popsicle sticks are in the bag? Write your answer in a complete sentence.
Possible Set Up: 5/100 = 15/?
Answer: 300 total sticks (must have words)
200
Select all the events that have a probability of 0.
A. Choosing a red block from a bag with 9 white blocks and 1 red block.
B. Rolling a 6, three times in a row, on a standard number cube.
C. Rolling a 7 on a standard number cube.
D. Opening a 400-page book to exactly page 231.
E. Opening a 400-page book a page number greater than 450.
C & E
C. Rolling a 7 on a standard number cube.
E. Opening a 400-page book a page number greater than 450.
300
When flipping a marshmallow 50 times it landed upright 13 times.
The probability is 13/50. What is the likelihood?
UNLIKELY
300
There are 18 tokens in a bag.
What is the probability of randomly choosing...
P(ODD): State the probability as a simplified fraction, decimal, and percent.
4/9 = 0.444 = 44.4%
300
TWO PART QUESTION:
There are 12 total tiles in a bag.
a) What is the probability that you draw a star tile, replace the tile, then choose another star tile?
b) What is the probability that you draw a star tile, DO NOT replace the tile, then choose another star tile?
a) 2/12 x 2/12, ANSWER: 1/36
b) 2/12 x 1/11, ANSWER: 1/66
300
In a bag of mystery popsicle sticks, the probability of picking a red stick is 0.2. If there are 35 popsicle sticks in a bag, how many are red popsicle sticks? Write your answer in a complete sentence.
Possible Set Up: 2/10 = ?/35
Answer: 7 red popsicle sticks (must have words)
300
A frozen yogurt store sells 3 different flavors of yogurt: vanilla, chocolate, and strawberry. An order of frozen yogurt comes with 4 different topping choices: fudge, caramel, fruit, or plain. How many unique ways can you order a frozen yogurt? (You can only select one flavor of yogurt and one topping).
12 different combinations
400
You win half of your soccer games.
The probability is 0.5. What is the likelihood?
EQUALLY LIKELY
400
There are 18 tokens in a bag.
What is the probability of randomly choosing...
P(less than 5): State the probability as a simplified fraction, decimal, and percent.
5/18 = 0.278 = 27.8%
400
There are 28 balloons.
What is the probability of popping a yellow balloon twice in a row...
P(YELLOW, YELLOW): State the probability as a simplified fraction.
5/28 x 4/27 = 20/756
ANSWER: 5/189
400
The chance of spinning yellow is 9%. If you spin yellow 3 times, approximately how many times did you attempt the game based on this probability? Write your answer in a complete sentence.
Possible Set Up: 9/100 = 3/?
Answer: You attempted about 33 total times (34 is also acceptable since 33.33 is an approximation)
400
The basketball coach says that based on Noah’s free throws this season, Noah has a 3/4 probability of making each free throw. Select all the ways Noah could accurately simulate the number of free throws he will make in his next 6 attempts.
A. Flip a coin 6 times. Count the number of heads.
B. Make a spinner with 6 equally-sized sections, labeled with the numbers 1 through 6. Spin the spinner 6 times and count how many times the spinner lands on 3 or 4.
C. Put 3 red chips and 1 white chip in a bag. Draw a chip from the bag, record the result, and put it back in the bag. Do this 6 times and count the number of red chips drawn.
D. Make a spinner with 4 equally-sized sections. Color three sections green and one sections red. Spin the spinner 6 times and count the number of times the spinner lands on green.
E. Put the numbers 1 through 6 in a bag. Pick a number from the bag.
C & D
C. Put 3 red chips and 1 white chip in a bag. Draw a chip from the bag, record the result, and put it back in the bag. Do this 6 times and count the number of red chips drawn.
D. Make a spinner with 4 equally-sized sections. Color three sections green and one sections red. Spin the spinner 6 times and count the number of times the spinner lands on green.
500
What is the probability as a simplified fraction, decimal, percent and likelihood of randomly drawing a card with a value greater than 6 from a standard deck of 52 cards? (ex: 7, 8, 9, 10, Jack, Queen, King, Ace)
Answers must have all four parts:
8/13 = 0.615 = 61.5% LIKELY
(rounded answers are accepted)
500
What is the probability of spinning...
P(NOT GREEN): State the probability as a simplified fraction, decimal, and percent.
3/4 = 0.75 = 75%
500
There are 18 tokens in a bag.
What is the probability that you draw an ODD number three times in a row, after NOT replacing the token.
8/18 x 7/17 x 6/16 = 336/4896
ANSWER: 7/102
500
At a carnival, the probability that you win ring toss 0.15. If you attempted the game 40 times. How many times did you NOT win?
Possible Set Up: 15/100 = ?/40
Answer: You did not win 34 times.
(15/100 = ?/40, so you won 6 times. 40-6 = 34 not winning.)
500
CHALLENGE QUESTION!! You flip a coin 4 times. What is the probability that you get a tails at least 2 of those times? (may want to draw a tree diagram)
ANSWER: 11/16 = 0.6875 = 68.75% 