a) What are multiple factors comprising data quality? Describe those factors in brief. (10 Marks)

b) iFashion is a renowned fashion brand in Bangladesh which has several outlets in different cities. They have a central database to store all the information of their sales and customers. This year they are planning to start loyalty program by giving special offers to their loyal customers. For classifying the customer they hired you to analyze iFashion sales and customer data, What steps will you follow to perform the task. (10 Marks)

c) What is noise in data? What are the techniques for removing noise? (10 Marks)