Answer : Option DExplaination / Solution:
Statistical methods of collecting, organising and analysing data are used to conclude or solve a problem for present or future use.
Q2.One of the drawbacks of the Direct personal investigation method is ______.
Answer : Option CExplaination / Solution:
Here, the investigator himself visits the persons those are source of the data and collects necessary information either through interview with the persons concerned or through observation of the data on the spot due to which this method is costly as well as time taking.
Q3.Under which method investigator prepare a questionnaire keeping in view the objective of enquiry?
Answer : Option DExplaination / Solution:
It is done to make the questions easy, simple, and understandable so that the informant can answer without any help.
Answer : Option AExplaination / Solution:
In statistics, collection of data have two dimensions. ie; collection of data from informants and the method of collecting it. here source means the population or the informants and methods are questionnair, telephonic interview, information through correspondence etc.
Q5.Which of the following is true regarding secondary source of data?
Answer : Option AExplaination / Solution:
When the data is collected by an individual or an organisation and another individual or organisation use that data , this data will termed as secondary data. The objective of collection may vary amongst the investigating and using organisation.
Q6.________ are those which are already in existence and which might be collected for some purpose other than the answering of the question in hand.
Answer : Option DExplaination / Solution:
The organisation's objective of collecting the data may be different from the objective of the one who is using that data.
Q7.Direct personal investigation method is suitable where ___________
Answer : Option BExplaination / Solution:
An investigator can keep the informaion secretly and , also, can help the respondent to understand the questions in a better way, through direct personal investigation.
Q9.The two ways of collecting information on the basis of questionnaire are _______.
Answer : Option AExplaination / Solution:
A questionnair can be mailed or be filled by an enumerator considering the understanding level of the informant and accessibility.