Probability Basics (AQA GCSE Maths): Flashcards
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10 cards from this deck
Range of all probability values
Range of all probability values
Between 0 and 1
What does a probability of 0 mean?
What does a probability of 0 mean?
Impossible - something that can never happen
What does a probability of 1 mean?
What does a probability of 1 mean?
Certain - something that will definitely happen
What does a probability of mean?
What does a probability of mean?
Evens - equal chance of happening or not
Probability formula (equally likely outcomes)
Probability formula (equally likely outcomes)
Favourable outcomes ÷ Total possible outcomes
When does the basic probability formula work?
When does the basic probability formula work?
When all outcomes are equally likely
Sum of all probabilities for all possible outcomes
Sum of all probabilities for all possible outcomes
1
Formula: using complement
Formula: using complement
Three ways to express probability
Three ways to express probability
Fractions, decimals, percentages
Words indicating equally likely outcomes in questions
Words indicating equally likely outcomes in questions
Fair, unbiased, random