Use methods such as mode, median, mean, and cluster analysis to effectively clean the Bank of Portugal telemarketing data (http://archive.ics.uci.edu/ml/datasets/Bank+Marketing#).
Data field description:
(1) Bank customer information:
- age: age (number)
- job: job type. admin, blue-collar, entrepreneur, housemaid, 'management', retired, 'self-employed', Services ('services'), students ('student'), technicians ('technician'), unemployed ('unemployed'), unknown ('unknown')
- marital: Marital status, divorced ('divorced'), married ('married'), single ('single'), unknown ('unknown'). Note: Divorce also includes widowhood
- education: Education status: Basic 4 years ('basic.4y'), Basic 6 years ('basic.6y'), Basic nine years ('basic.9y'), high school &