Can anyone explain me in simple english why does mean and median play a important role on Data mining. Actually finding a mean and median is of what use?
And many people say's median is better at times than mean, why so? And I'm a novice in data mining so it will be really good if the answer is in simple terms.

Thanks in advance.

Can anyone explain me in simple english why does mean and median play a important role on Data mining. Actually finding a mean and median is of what use?
And many people say's median is better at times than mean, why so? And I'm a novice in data mining so it will be really good if the answer is in simple terms.

can anyone explain me in simple english why does Mean and Median play a important role on Data mining. Actually finding a mean and median is of what use? And many people say's median is better at times than mean, why so? And I'm a novice in data mining so it will be really good if the answer is in simple terms

Thanks in advance.

Can anyone explain me in simple english why does mean and median play a important role on Data mining. Actually finding a mean and median is of what use? 
And many people say's median is better at times than mean, why so? And I'm a novice in data mining so it will be really good if the answer is in simple terms.

Thanks in advance.