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Can only be sorted in ascending order?
There is nothing that can only be sorted in ascending order - unless the sorting is being done as the data are being generated.
Data that consist of observations that can only be classified and counted by category and have no inherent order?
It is qualitative data.
Advantages and disadvantages of bubble sort?
This algorithm has several advantages. It is simple to write, easy to understand and it only takes a few lines of code. The data is sorted in place so there is little memory overhead and, once sorted, the data is in memory, ready for processing. The major disadvantage is the amount of time it takes to sort. The average time increases almost exponentially as the number of table elements increase. Ten times the number of items takes almost one hundred times as long to sort.
When can a set of data have no mode?
When each value occurs only once in the data set.
Which are the characteristics of data mart?
A data mart is a data repository that gathers data and similar items from certain users or workers. Its characteristics include being focused on one subject like finances or sales, only gathering data from a couple sources like the external data or central data warehouse, and being controlled by only one source.
