What is probability?
Probability Flashcard

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.
2.
FLASHCARD QUESTION
Front
What is the formula for calculating the probability of an event?
Back
The probability of an event is calculated using the formula: P(Event) = Number of favorable outcomes / Total number of possible outcomes.
3.
FLASHCARD QUESTION
Front
What does it mean if the probability of an event is 1/2?
Back
It means that there is an equal chance of the event occurring or not occurring.
4.
FLASHCARD QUESTION
Front
What is the probability of landing on blue if a spinner has 3 blue sections out of 12 total sections?
Back
The probability is 3/12 or 1/4.
5.
FLASHCARD QUESTION
Front
How do you calculate the probability of not getting a certain outcome?
Back
P(not Event) = 1 - P(Event). For example, if P(purple) = 1/5, then P(not purple) = 1 - 1/5 = 4/5.
6.
FLASHCARD QUESTION
Front
What is the probability of landing on green twice in a row if the probability of landing on green once is 1/6?
Back
7.
FLASHCARD QUESTION
Front
What is the probability of drawing a red card from a standard deck of cards?
Back
The probability is 26/52 or 1/2, since there are 26 red cards in a standard deck.
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