Two-way tables (Edexcel GCSE Statistics): Flashcards
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Practise the cards
7 cards from this deck
What info do two-way tables display?
What info do two-way tables display?
Frequencies for categories, row and column totals.
How to find probability from a two-way table?
How to find probability from a two-way table?
Favourable outcomes over total outcomes, usually grand total.
What is the basic probability formula?
What is the basic probability formula?
Favourable outcomes ÷ Total outcomes.
How do you find the most likely outcome?
How do you find the most likely outcome?
Identify the category with the highest frequency.
What is a common mistake when reading tables?
What is a common mistake when reading tables?
Using wrong total, misreading a cell or total.
Find P(Feb) if Feb = 30 and grand total = 75
Find P(Feb) if Feb = 30 and grand total = 75
30/75 = 2/5 = 0.4
If Feb column has 30 of 75, find P(Feb)
If Feb column has 30 of 75, find P(Feb)
30/75 = 2/5 = 0.4