Mode and median (AQA GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What is the modal class in grouped data?
What is the modal class in grouped data?
It's the class interval with the highest frequency.
How to find the median position formula?
How to find the median position formula?
Median position = (n + 1) / 2, where n is total frequency.
What is the first step to find the median class?
What is the first step to find the median class?
Calculate cumulative frequency for the data.
How do you estimate the median value?
How do you estimate the median value?
Use: L + ((0.5n - F) / f) * w.
What does F represent in median estimation?
What does F represent in median estimation?
F is cumulative frequency before the median class.
What is the width (w) in median estimation?
What is the width (w) in median estimation?
Width is the difference between upper and lower boundaries.
How to identify the modal class from a table?
How to identify the modal class from a table?
Look for the interval with the highest frequency.
What common mistake occurs with modal class?
What common mistake occurs with modal class?
Confusing modal class with the exact mode value.
Why is cumulative frequency important?
Why is cumulative frequency important?
It's needed to find the median class accurately.
What should you check in cumulative frequency?
What should you check in cumulative frequency?
Ensure it adds up to the total frequency correctly.