7th Grade Probability Flashcards
Probability is….
the chance of something happening.
Outcome is…
the result of an action
Event is….
collection of possible outcomes
Independent events….
DON’T affect each other
Dependent events….
DO affect each other
theoretical probability….
is what SHOULD happen
experimental probability…
is what DOES happen
0% probability is….
impossible!
1-49% probability is….
less likely
50% probability is…
equally likely chance
51%-99% probability is….
more likely
100% probability is….
certain!
You can write probability as a…..
fraction, decimal or percent
To find the probability of compound events you…
multiply the 2 fraction probabilities
If you are given an experimental probability and then want to apply it to a future scenario, how do you set it up?
set up a proportion