‘Gold Collar’ professionals are highly skilled and well-paid individuals who typically hold influential or prestigious positions, often involving specialized knowledge and decision-making abilities. Policy formulators fall under this category as they influence and design policies impacting governance and development.
Thus, Policy Formulator best represents a ‘Gold Collar’ professional.
The following data represents the income of a country for a year: 
Calculate the National Income (NI) of the country.
The following data shows the number of students in different streams in a school: 
Which type of graph is best suited to represent this data?