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Does correlation imply causation?
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Data represented through arithmetic line graph help in understanding ______
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The width of rectangles in a histogram should essentially be equal.
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Histogram can only be formed with the continuous classification of data.
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Histogram and column diagram is the same method of presentation of data.
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The mode of a frequency distribution can be known graphically with the help of a histogram.
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The median of a frequency distribution cannot be known from the ogives.
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Suppose you want to emphasize the increase in the share of urban non-workers and lower level of urbanization in India as shown in the Census of India, 2001. How would you do it in the tabular form?
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How does the procedure of drawing a histogram differ when class intervals are unequal in comparison to equal class intervals in a frequency table?
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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?
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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.
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State with reason, whether you Agree or Disagree with the following statement.
The demand curve slopes downward from left to right.
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Ogives can be helpful in locating graphically the ______
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The following table shows the estimated sectoral real growth rates (percentage change over the previous year) in GDP at factor cost.
|
Year |
Agriculture and allied sectors |
Industry |
Services |
|
1994-95 |
5.0 |
9.2 |
7.0 |
|
1995-96 |
-0.9 |
11.8 |
10.3 |
|
1996-97 |
9.6 |
6.0 |
7.1 |
|
1997-98 |
-1.9 |
5.9 |
9.0 |
|
1998-99 |
7.2 |
4.0 |
8.3 |
|
1999-2000 |
0.8 |
6.9 |
8.2 |
Represent the data as multiple time-series graphs.
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If rxy is positive the relation between X and Y is of the type ______
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If rxy = 0 the variable X and Y are ______
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Of the following three measures which can measure any type of relationship.
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Can r lie outside the –1 and 1 range depending on the type of data?
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Does zero correlation mean independence?
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Can a simple correlation coefficient measure any type of relationship?
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