Frequency tables can be used to help present sets of data. There are 4 children aged 10, which gives a total age of 40 in that category. There are 6 children aged 11, which gives a total age of 66 in ...

When data has been grouped, the mean value cannot be found exactly as the individual values in each class are not known. To find an approximate value for the mean from a grouped frequency table, the ...

A common data mining task is the search for associations in large databases. Here we consider the search for "interestingly large" counts in a large frequency table, having millions of cells, most of ...