NCERT solutions for Statistics for Economics [English] chapter 4 - Presentation of Data [Latest edition]

Bar diagram is a ______ 

Data represented through a histogram can help in finding graphically the ______ 

Ogives can be helpful in locating graphically the ______ 

Data represented through arithmetic line graph help in understanding ______ 

The width of bars in a bar diagram need not be equal.

The width of rectangles in a histogram should essentially be equal.

Histogram can only be formed with the continuous classification of data.

Histogram and column diagram is the same method of presentation of data.

The mode of a frequency distribution can be known graphically with the help of a histogram. 

The median of a frequency distribution cannot be known from the ogives. 

What kinds of diagrams are more effective in representing the following?

Monthly rainfall in a year

What kinds of diagrams are more effective in representing the following?

Composition of the population of Delhi by religion

What kinds of diagrams are more effective in representing the following?

Components of cost in a factory

The Indian Sugar Mills Association reported that ‘Sugar production during the first fortnight of December 2001 was about 3,87,000 tonnes, as against 3,78,000 tonnes during the same fortnight last year (2000). The off-take of sugar from factories during the first fortnight of December 2001 was 2,83,000 tonnes for internal consumption and 41,000 tonnes for exports as against 1,54,000 tonnes for internal consumption and nil for exports during the same fortnight last season.’

Present the data in tabular form.

The Indian Sugar Mills Association reported that ‘Sugar production during the first fortnight of December 2001 was about 3,87,000 tonnes, as against 3,78,000 tonnes during the same fortnight last year (2000). The off-take of sugar from factories during the first fortnight of December 2001 was 2,83,000 tonnes for internal consumption and 41,000 tonnes for exports as against 1,54,000 tonnes for internal consumption and nil for exports during the same fortnight last season.’

Suppose you were to present these data in a diagrammatic form which of the diagrams would you use and why?

The Indian Sugar Mills Association reported that ‘Sugar production during the first fortnight of December 2001 was about 3,87,000 tonnes, as against 3,78,000 tonnes during the same fortnight last year (2000). The off-take of sugar from factories during the first fortnight of December 2001 was 2,83,000 tonnes for internal consumption and 41,000 tonnes for exports as against 1,54,000 tonnes for internal consumption and nil for exports during the same fortnight last season.’

Present these data diagrammatically.

The following table shows the estimated sectoral real growth rates (percentage change over the previous year) in GDP at factor cost.

Represent the data as multiple time-series graphs.