BRAINCAKEMean, median and Mode
The mean, median and mode are all measures of the average, or central tendency, of a set of data.
The mean is the sum of all the values divided by the number of values. It uses every value but is affected by extreme values (outliers).
The median is the middle value when the data are put in order. If there is an even number of values, it is the mean of the two middle values. It is less affected by outliers.
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Key terms in this lesson
- categoric data
- Data that can be sorted into discrete categories, described by a label rather than a numerical value.
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- Random Sampling
- Normal Distribution
- Mean and Standard Deviation
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All 33 lessons in Biodiversity · All AQA AS-level Biology topics