Independent events (AQA GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What defines independent events in probability?
What defines independent events in probability?
One event's outcome doesn't affect another's.
Calculate P(4 and 6) when rolling a dice twice.
Calculate P(4 and 6) when rolling a dice twice.
P(4) * P(6) = 1/6 * 1/6 = 1/36.
What is the multiplication law for independent events?
What is the multiplication law for independent events?
P(A and B) = P(A) * P(B).
Find P(heads twice when spinning a coin.
Find P(heads twice when spinning a coin.
P(H) * P(H) = 0.5 * 0.5 = 0.25.
What is P(A and B and C for independent events?
What is P(A and B and C for independent events?
P(A) * P(B) * P(C) if A, B, C are independent.
Calculate P(4 and head) for dice and coin.
Calculate P(4 and head) for dice and coin.
P(4) * P(head) = 1/6 * 1/2 = 1/12.
What is P(even number and head) for dice and coin?
What is P(even number and head) for dice and coin?
P(even) * P(head) = 1/2 * 1/2 = 1/4.
How to calculate probability of 2 odds and 1 tail?
How to calculate probability of 2 odds and 1 tail?
Use P(odd)^2 * P(tail) = (1/2)^2 * (1/2) = 1/8.
What should you check before using multiplication rule?
What should you check before using multiplication rule?
Ensure events are independent.
What is a common mistake with independent events?
What is a common mistake with independent events?
Adding probabilities instead of multiplying.