The mean of a database is the average value of all the data points, calculated by adding up all the values and dividing by the total number of values.
The spread of a database refers to the range of values or the variability of the data. It can be measured using different statistical measures such as the range, interquartile range, variance, and standard deviation. These measures help to understand how spread out the data points are from the mean value.
what's a mean and spread of a database
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