Question
Differentiate between direct personal investigation and indirect oral investigation.
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S. No.
|
Basis
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Direct Personal Investigation
|
Indirect Oral Investigation
|
|
1.
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Source of Information
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In direct personal investigation, information is collected directly from the concerned persons.
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In indirect oral investigation, information is collected from persons other than the concerned persons.
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| 2. |
Area of Investigation
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This method of data collection is suitable if the area of investigation is limited.
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This method of data collection is suitable when the area of investigation is large.
|
|
3.
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Cost
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This method of data collection is costly.
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This method of data collection is comparatively cheaper.
|
|
4.
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Knowledge about Informants
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In this method, the investigator should know the language and the culture of the informants.
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This method does not require the investigator to be well-versed with the language and culture of the informants.
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|
Series1
|
Series2
|
|
|
2
|
Marks
|
No. of student
|
|
8
|
5-10
|
02
|
|
6
|
10-20
|
03
|
|
4
|
20-45
|
01
|
|
10
|
45-60
|
06
|
|
15
|
|
|
|
Marks
|
Less than 10
|
Less than 20
|
Less than 30
|
Less than 40
|
Less than 50
|
|
No. of Students
|
10
|
30
|
60
|
80
|
90
|
| Units of Labour | Average Product (A) (units) | Marginal Product (Units) |
| 1 | 8 | - |
| 2 | 10 | - |
| 3 | - | 10 |
| 4 | 9 | - |
| 5 | - | 4 |
| 6 | 7 | - |

|
Years
|
2013
|
2014
|
2015
|
2016
|
2017
|
2018
|
|
Profits (in '000 ₹)
|
60
|
72
|
75
|
65
|
80
|
95
|