Probability Terms
What term describes an event that cannot happen?
Impossible
How many outcomes are there when flipping a coin?
2
Write the probability of rolling a 3 on a number cube.
1/6
What does "likely" mean in terms of probability?
an event has a high chance of occurring
Create a model to show the probability of drawing a red marble from a bag with 3 red and 2 blue marbles.
3/5 - bag with 3 red and 2 blue marbles
What does "certain" mean in probability?
an event is guaranteed to happen
If you spin a spinner with numbers 1-4, how many outcomes are possible?
4
Write the probability of getting heads when flipping a coin.
equally likely, 1/2
If an event has a probability of 1/2, how would you describe its likelihood?
equally likely
**Double Jeopardy**
Use a spinner divided into 4 equal parts to model the probability of landing on green if 1 part is green.
1/4 - spinner with 4 equal parts
What does "equally likely" mean?
each possible outcome of an experiment has the same chance of occurring
If you roll a number cube, what are the possible outcomes?
1, 2, 3, 4, 5, 6
Write the probability of rolling an even number on a number cube.
1/2
**Double Jeopardy**
What is the likelihood of picking a blue marble if there are 2 blue marbles and 8 total marbles?
unlikely
Create a contextual problem that represents a probability of 1/4.
spinner, marbles, etc
Describe an event that is "unlikely."
varies - getting a red tile in a bag with 6 blue, 3 yellow, and 1 red
**Double Jeopardy**
If you have a bag with 5 green and 3 red marbles, how many total outcomes are there?
2
Write the probability of pulling a red marble from a bag with 4 red and 6 blue marbles.
4/10
Explain what it means for an event to be "impossible."
an event that has absolutely no chance of occurring
Model the probability of rolling a number less than 3 on a number cube.
2/6 - unlikely
Give an example of an event that is "certain."
Give an example of an event that is "certain."
How many outcomes are there if you toss two coins?
4 - HH, HT, TT, TH
What is the probability of selecting a number greater than 2 from a number cube?
4/6
If the probability of an event is 0, what does that mean?
impossible
Create a problem involving a spinner with 5 colors representing different probabilities.
spinner with different size colored sections