Conditional probability (AQA GCSE Statistics): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does P(A|B) represent in probability?
What does P(A|B) represent in probability?
Probability of A given B
In a tree diagram, how do you find P(Y|X)?
In a tree diagram, how do you find P(Y|X)?
Multiply probabilities along branches
What does the total probability of event A represent in a Venn diagram?
What does the total probability of event A represent in a Venn diagram?
A occurs alone and with B
If P(A) = 0.4 and P(B|A) = 0.5, find P(A and B).
If P(A) = 0.4 and P(B|A) = 0.5, find P(A and B).
0.2
What does 'sampling without replacement' imply?
What does 'sampling without replacement' imply?
Events are dependent
Given A has occurred, how to find P(B|A)?
Given A has occurred, how to find P(B|A)?
Focus on A's section only
What is the first step in conditional probability?
What is the first step in conditional probability?
Identify the 'given' condition
What is the formula for conditional probability P(A|B)?
What is the formula for conditional probability P(A|B)?
P(A and B) / P(B)
What is the probability of both events A and B?
What is the probability of both events A and B?
P(A) × P(B|A)
What does the word 'given' indicate in probability?
What does the word 'given' indicate in probability?
Conditional probability