AQA · Mathematics · 8300
GCSE Maths: Averages: range (frequency tables)
Statistics · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Averages: range (frequency tables) (Corbettmaths Video 57), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.
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What is the mode in a frequency table?
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The value or category with the highest frequency.
How do you find the range from a frequency table?
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Subtract the smallest value from the largest value in the data set.
What is the modal class interval in grouped data?
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The class interval with the highest frequency.
In a frequency table, how do you calculate the total number of items?
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Multiply each value by its frequency and add all the products together.
What information does a tally chart record?
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It uses tally marks to count how many times each value or category occurs, which can then be converted to frequencies.
If a new data value is added that equals the current mode, how does this affect the mode?
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The mode remains the same, as it is still the most frequent value.
If a new data value is added that falls within the existing data range, how does this affect the range?
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The range remains the same, as the minimum and maximum values are unchanged.
If a new data value is added that is larger than all existing values, how does this affect the range?
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The range increases, as the new value becomes the new maximum.
Range = ? − smallest value
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largest value
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