Probability
A bag has 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of drawing a blue marble?
3/10
You flip a coin. Write the sample space.
heads, tails
Is flipping a coin a chance experiment?
Yes
How many outcomes are possible when flipping 1 coin?
2
The entire class gets 100% on the math test.
Unlikely
A spinner has 8 equal sections numbered 1–8. What is the probability of landing on an even number?
4/8 or 1/2
You roll a die and flip a coin. Write the sample space.
(1,H), (1,T), (2,H), (2,T), (3,H), (3,T), (4,H), (4,T), (5,H), (5,T), (6,H), (6,T)
You want to test the probability of landing on heads. Describe a chance experiment you could do.
Up to students.
How many outcomes are possible when rolling 1 die?
6
A student says they will draw either a red card or a black card from a deck.
Certain
A standard deck of cards is shuffled. What is the probability of drawing a heart?
13/52
You roll a 6-sided die and spin a spinner with colors red and blue. Write the sample space.
1R,1B,2R,2B,3R,3B,4R,4B,5R,5B,6R,6B
You want to know the probability of rolling an even number on a die. Describe a chance experiment.
Student answers.
How many total outcomes are possible when flipping 3 coins?
8
You guess on a multiple-choice question with 4 answer choices and get it correct.
Unlikely
You flip a coin and roll a die. What is the probability of getting heads and a number greater than 4?
1/6
A restaurant offers drinks: water, soda, juice and meals: burger or pizza. Write the sample space for all possible meal combinations.
Water-Burger, Water-Pizza, Soda-Burger, Soda-Pizza, Juice-Burger, Juice-Pizza
A student wants to know how likely it is to pull a red marble from a bag. Describe a chance experiment they could perform.
Student Response
How many possible outcomes are there when rolling two 6-sided dice?
36
Your friend says, “I’m cooked,” before every test.
Likely
A spinner has 5 equal sections numbered 1–5. It is spun twice. What is the probability of landing on an even number both times?
4/25
A spinner has red, blue, and green. It is spun twice. Write the sample space.
(R,R), (R,B), (R,G),
(B,R), (B,B), (B,G),
(G,R), (G,B), (G,G)
You want to know the probability of getting two heads when flipping two coins. Describe a chance experiment you could perform.
Student answer.
An outfit consists of 3 shirts, 4 pairs of pants, and 2 pairs of shoes. How many outfit combinations are possible?
24
Everyone in class reads the directions completely before asking questions.
Impossible