Maths, Averages and Range

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Mode: The value that appears most frequently in a set of discrete data.

Median: The middle value when the data are ordered smallest to largest.

If there are two middle values the median is the number halfway between them.

Mean: The sum of the values divided by the total number of values.

Range: The highest value minus the lowest value.

For grouped data:

  • The class interval with


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