Question 1.
When is ‘India’s coalition done:
(a) Every first year of every decade
(b) Every first year of century
(c) Every year
(d) Every five year.

Answer

Answer: (a) Every first year of every decade

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Question 2.
State another name of Random Sampling:
(a) Chance sampling
(b) Drum Rotation method
(c) Lottery
(d) All of these.

Answer

Answer: (d) All of these.

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Question 3.
First step of presentation of data is:
(a) Categorisation
(b) Tabulation
(c) Both (a) and (b)
(d) None of these.

Answer

Answer: (a) Categorisation

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Question 4.
Which law should be kept is mind while and making tables:
(a) Correct size
(b) Correct measurement of unit
(c) Correct unit
(d) All of these.

Answer

Answer: (d) All of these.

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Question 5.
In what type of papers pictures are drawn:
(a) Graph paper
(b) White paper
(c) Any
(d) None of these.

Answer

Answer: (b) White paper.

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Fill in the blanks:

1. ………………………… provides real data.

Answer

Answer: Researcher

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2. ………………………… is present population data of India.

Answer

Answer: Census of India

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3. When data is categorised according to time it is called ……………………………..

Answer

Answer: Chronological

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4. Presentation of data in the form of table is called ………………………………

Answer

Answer: Tabulation

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5. Bar diagram is a ………………………… diagram.

Answer

Answer: Unit

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Match the columns:

Column A	Column B
1. Negative curve	(a) Comparison of value
2. Component Ray	(b) III
3. Main part of table	(c) Extends towards Left
4. Tally mark of 3	(d) Partial errors
5. Direction error	(e) Kievor.

Answer

Answer:

Column A	Column B
1. Negative curve	(c) Extends towards Left
2. Component Ray	(a) Comparison of value
3. Main part of table	(e) Kievor.
4. Tally mark of 3	(b) III
5. Direction error	(d) Partial errors

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Answer in one word:

1. What is simple curve called?

Answer

Answer: Bell shaped curve

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2. In how many year population calculation is done is India?

Answer

Answer: 10 yrs

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3. What is the other name of Pie diagram?

Answer

Answer: Primary

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4. Pie diagram is also known as?

Answer

Answer: Circular

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5. How many sources are there of index?

Answer

Answer: Two

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6. What is bivariate frequency distribution?

Answer

Answer: A bivariate distribution is the frequency distribution of two variables.

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7. What is complete census method?

Answer

Answer: It is a method of data collection in which data are collected for each and every unit of the population which constitutes the subject matter of the study.

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8. What is sample?

Answer

Answer: A sample refers to a group or section of the population from which data are obtained.

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9. What is Random sampling?

Answer

Answer: Method in which each and every item of the universe has an equal chance of being selected in the sample is called Random sampling.

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10. What is Non – Random sampling?

Answer

Answer: In Non – Random sampling every individual does not have an equal chance of being selected.

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