Answer :
Exploring large amount of data in other to explore underlying trends which cannot be uncovered by visual inspection or simple algorithms are analysed using Data mining.
Data mining are often performed using a network of interconnected computed or networks with very high processing capability and can handling high computational complexity due to the very large amount of data involved when data is being mined.
Linear regression are used on small data sets which cannot be compared to the vast amount of data involved in data mining.
Hence, data mining helps to uncover trends when exploring very large datasets.
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