Averages from frequency tables (Edexcel GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What is the mode in a dataset?
What is the mode in a dataset?
The most frequently occurring value in a dataset.
How do you find the mode from a frequency table?
How do you find the mode from a frequency table?
Identify the highest frequency and the corresponding data value.
What does the median represent?
What does the median represent?
The middle value when data points are in order.
How to find the median using cumulative frequency?
How to find the median using cumulative frequency?
Create a cumulative frequency column to locate the median position.
What is the formula for the median position?
What is the formula for the median position?
(n + 1) ÷ 2, where n is total frequency.
Why use cumulative frequency for median?
Why use cumulative frequency for median?
It helps find the exact position of the median in data.
In the example, what was the mode for cars parked?
In the example, what was the mode for cars parked?
1 car, as it appeared most often.
What is the main point about the mode?
What is the main point about the mode?
It is the data value with the highest frequency.
How is the median affected by discrete data?
How is the median affected by discrete data?
Answer should be a whole number or category.
Find mode and median for values 0-5 with freqs 5,16,12,10,7,3
Find mode and median for values 0-5 with freqs 5,16,12,10,7,3
Mode = 1; Median = 2 (n=53, median pos 27th)