Interview Questions
1. What kind of information is stored by Statistics?
Statistics contain two different types of information about the data; density and distribution. Density is simply the inverse of the
count of distinct values for the column or columns. The distribution is a representation of the data contained in the first column
of the statistic. This information is stored in a histogram; the histogram contains up to 200 steps with a lower and upper limit
and contains the count of values that fall between both limits.
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