Collection of Date. Statistisc Chapter 2

Question 1: Stratified sample is preferred where:

• Population is perfectly homogeneous.
• Population is non-homogeneous.
• Random sampling is not possible.
• Small samples are required.

Question 2: Data collected for the first time from the source of origin is called:

• Primary data.
• Secondary data.
• Internal data.
• None of these.

Question 3: Census method is suitable for that investigation in which:

• The size of population is large.
• High degree of accuracy is not required.
• There are widely diverse items.
• Intensive examination is not required.

Question 4: Which of the following factor(s) are considered when comparison between sampling and census method is made?

• Area of survey.
• Accuracy of data.
• Cost of collection.
• All of these.

Question 5: Reliability of sampling data depends on:

• Size of sample.
• Method of sampling.
• Training of enumerators.
• All of these.

Question 6: Under random sampling, each item of the universe has __ chance of being selected.

• Equal chance.
• Unequal chance.
• Zero chance.
• None of these.

Question 7: Which of the following methods is used for the estimation of population in a country?

• Census method.
• Sampling method.
• Both (a) and (b).
• None of these.

Question 8: Personal bias is possible under:

• Random sampling.
• Purposive sampling.
• Stratified sampling.
• Quota sampling.

Question 9: If the investigator wants to select a sample on the basis of diverse characteristics of the population, which method should he use?

• Convenience sampling method.
• Quota sampling method.
• Stratified sampling method.
• Both (b) and (c).

Question 10: For drawing a lottery, _________________ sampling is used.

• Random sampling.
• Purposive sampling.
• Stratified sampling.
• Quota sampling.