Simple Probability & Likelihood

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is probability?
Back
Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).
2.
FLASHCARD QUESTION
Front
What does it mean if an event is 'certain'?
Back
An event is 'certain' if it will definitely happen, with a probability of 1.
3.
FLASHCARD QUESTION
Front
What does it mean if an event is 'impossible'?
Back
An event is 'impossible' if it cannot happen at all, with a probability of 0.
4.
FLASHCARD QUESTION
Front
How do you calculate the probability of an event?
Back
Probability = (Number of favorable outcomes) / (Total number of possible outcomes).
5.
FLASHCARD QUESTION
Front
If a jar has 4 blue marbles and 23 red marbles, what is the probability of picking a red marble?
Back
Probability of red marble = 23/27, which is likely.
6.
FLASHCARD QUESTION
Front
What is the likelihood of spinning a color that is not present on a spinner?
Back
The likelihood is impossible, with a probability of 0.
7.
FLASHCARD QUESTION
Front
If the probability of an event is 1/4, what does that mean?
Back
It means that there is a 25% chance that the event will occur.
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