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Standard XI
Statistics
Sampling and Its Types
The types of ...
Question

The types of error in sample investigation way of collecting of data are ______________.

A
Actual error
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B
Random error
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C
Sampling error
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D
Both b&c
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Solution

The correct option is D Both b&c
The types of error in sample investigation way of collecting of data are both- random error and sampling error. Random error occurs when there is a precision limitation in the measurement device and sampling error occurs when the observation is done only on the sample and not on the whole population.

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Q. State whether the following statements are True or False.
(i) There are many sources of data
(ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area.
(iii) Data collected by investigator is called the secondary data.
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Q.

State whether the following statements are True or False.

(i) There are many sources of data. (True/False)

(ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area. (True/False)

(iii) Data collected by investigator is called the secondary data. (True/False)

(iv) There is a certain bias involved in the non-random selection of samples. (True/False)

(v) Non-sampling errors can be minimised by taking large samples. (True/False)

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