Presentation of Data

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

Width of bars in a bar diagram need not be equal (True/False).

Width of rectangles in a histogram should essentially be equal (True/False).

Histogram can only be formed with continuous classification of data (True/False).

Histogram and column diagram are the same method of presentation of data. (True/False)

Mode of a frequency distribution can be known graphically with the help of histogram. (True/False)

Median of a frequency distribution cannot be known from the ogives. (True/False)

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

Suppose you want to emphasise the increase in the share of urban non-workers and lower level of urbanisation in India as shown in Example 4.2. How would you do it in the tabular form?

How does the procedure of drawing a histogram differ when class intervals are unequal in comparison to equal class intervals in a frequency table?

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.'