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1. Discuss whether or not each of the following activities is a data mining task.

(a) Dividing the customers of a company according to their gender.

This can be done by simple SQL query of SELECT * FROM gender; therefore this activity is
not a data mining task.

(b) Dividing the customers of a company according to their profitability.

There are other more simple methods to classify customers according to their profitability
therefor this activity cannot be considered as data mining task.

(c) Computing the total sales of a company.

This task can be done by simple mathematics therefore this activity is not a data mining task.

(d) Sorting a student database based on student identification numbers.

This is also not a data mining as this task can be done by SQL query.

(e) Predicting the outcomes of tossing a (fair) pair of dice.

This is not a data mining task it is simple probability theory i.e. 1/6 chance for each side of dice
th
on every toss.

(f) Predicting the future stock price of a company using historical records.

This can be a data mining task, by collection data from past and applying statistical method
future in any scenario can be predicted.

(g) Monitoring the heart rate of a patient for abnormalities.
This is not a data mining task, medical sciences have developed machines for this task.

(h) Monitoring seismic waves for earthquake activities.

This can be a data mining task. Monitoring seismic waves and collecting data from past is the
essential part of data mining.

(i) Extracting the frequencies of a sound wave.

We can calculate frequency by formula frequency=1/time. Therefore it cannot be a data mining
task.