CBSE Class 11 Economics Organization Of Data Worksheet

Multiple Choice Questions

Question. Which of the following is/are objectives of classification?
(a) To simplify facts
(b) To facilitate comparison
(c) To point out similarities and dissimilarities
(d) All of the above
Answer : D

Question. Raw data is made comprehensible by :
(a) collection of data
(b) classification of data
(c) organization of data
(d) presentation of data
Answer : B

Question. In a frequency distribution, the class may be :
(a) singular or plural
(b) subjective or objective
(c) individual or discrete
(d) inclusive or exclusive
Answer : D

Question. The characteristic of fact that can be measured in the form of numbers is called:
(a) Frequency
(b) variable
(c) attribute
(d) none of these
Answer : D

Question. A refers to quantity whose value varies from one investigation to another.
(a) constant
(b) variable
(c) array
(d) none of these
Answer : B

Question. Classification done according to the attributes of data.
(a) Quantitative Classification
(b) Qualitative classification
(c) Chronological classification
(d) Spatial classification
Answer : B

Question. Formula for finding mid-value is given by
(a) l2-l2
(b) l2-l1/2
(c) l1-l2
(d) l1-l2/2
Answer : B

Question. The frequency distribution of two variables is known as:
(a) Univariate distribution
(b) Bivariate distribution
(c) Multivariate
(d) None of the above
Answer : B

Question. A given characteristics or attributes of a statistical enquiry refers to which of the following?
(a) Qualitative behavior
(b) Quantitative behavior
(c) Both (a) and (b)
(d) None of the above
Answer : A

Question. A variable which can take integral as well as fractional values is known as ………… .
(a) discrete variable
(b) continuous variable
(c) constant variable
(d) All of the above
Answer : B

Question. Classification should be elastic in nature. Choose from the options below.
(a) True
(b) False
(c) Partially true
(d) Incomplete statement
Answer : A

Question. Choose the correct equation from given below.
(a) S = r/n
(b) S = r – n
(c) S = r + n
(d) None of these
(Here S = Size of class, r = Range,
n = Number of class)
Answer : A

Question. A quantity which varies from one individual to another is known as ……… .
(a) Array
(b) Series
(c) Variable
(d) None of these
Answer : C

Question. Which of the following is/are type(s) of classification?
(a) Chronological classification
(b) Geographical classification
(c) Qualitative classification
(d) All of the above
Answer : D

Question. Food habits of an individual is an example of
(a) attribute
(b) variable
(c) continuous variable
(d) None of these
Answer : A

Question. Classification of data based on time period is known as ……… .
(a) chronological classification
(b) geographical classification
(c) qualitative classification
(d) None of the above
Answer : A

Question. Which of the following is/are statistical series based on construction?
(i) Individual series
(ii) Discrete series
(iii) Continuous series
Choose from the options below.
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (i), (ii) and (iii)
Answer : B

Question. The difference between highest and lowest items of the series is known as class width. Choose from the options below.
(a) True
(b) False
(c) Partially true
(d) Incomplete statement
Answer : B

Question. Categorisation of data based upon the citizenship of an individual is an example of ……….. .
(a) quality
(b) attribute
(c) variable
(d) None of the above
Answer : B

Question. Data which is grouped with reference to the attributes is referred to as ……… .
(a) chronological classification
(b) geographical classification
(c) qualitative classification
(d) quantitative classification
Answer : C

Question. Class width is same as ……… .
(a) class frequency
(b) class interval
(c) Both (a) and (b)
(d) Neither (a) nor (b)
Answer : B

Question. Mutually exclusive distribution is used to represent
(a) individual series
(b) discrete series
(c) continuous series
(d) All of these
Answer : C

Direction Read the following case study and answer questions 66 to 70 on the basis of the same.
Collection of data is the first step in a statistical analysis. Data can be collected either from primary source or secondary source. Primary data is original as it is being collected for the first time. After collecting the data, next step is to organise the data as raw data cannot be used for further statistical analysis. There are various methods of classification of data based upon the nature of quantitative data.

Question. Data are grouped with reference to the attributes is referred to as…classification.
(a) qualitative
(b) quantitative
(c) both (a) and (b)
(d) Neither (a) nor (b)
Answer : A

Question. Time series graphs are presented on the basis of general characteristics of a data.
Choose from the options below.
(a) True
(b) False
(c) Partially true
(d) Incomplete statement
Answer : B

Question. Assertion (A) Classification of data is done after organisation process.
Reason (R) Collection of raw data is not useful for further analysis.
Alternatives
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A)
(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A)
(c) Assertion (A) is false, but Reason (R) is true
(d) Both are false
Answer : C

Question. In which of the following method of frequency distribution, the upper limit of each class is excluded from the series but equal to the lower limit of the succeeding series?
(a) Continuous exclusive frequency distribution
(b) Continuous inclusive frequency distribution
(c) Continuous cumulative frequency distribution
(d) None of the above
Answer : A

Question. Classification of data based on time period is known as ……… classification.
(a) chronological
(b) temporal
(c) spatial
(d) Both (a) and (b)
Answer : D

Question. What is meant by homogeneity of data?
Answer : Classification is the grouping of related facts into different classes.
The similarity of features of all the units of a class called homogeneity.

Question. What is meant by organization of data?
Answer : Organization of data refers to the systematic arrangement of figures in such a form that comparison of masses of similar data may be facilitated and further analysis may be possible.

Question. Define raw data.
Answer : A mass of data in its crude form is called raw data. It is an unorganized mass of the various items.

Question. What is meant by frequency?
Answer : Frequency is number of times an item repeats itself in the series.

Question. What is meant by exclusive series?
Answer : When the class intervals are so fixed that the upper limit of one class interval is the lower limit of the next class interval it is called an exclusive series.

Q1. Define the following terms:-

\Variable ,Attributes, Classifications, Tabulation, Statistical Series, Frequency, Class Frequency, Total Frequency, Frequency distribution, Class, Upper & lower Limits, Class interval , Midpoint.

Q2. What are the different types of series on the basis of general characters?

Q3. What are the 3 types of series on the basis of construction.

Q4. Define an array?

Q5. Distinguish between

(a) Discrete & continuous variable

(b) Discrete & continuous series

(c) Inclusive & Exclusive Method

(d) Simple & Cumulative series

Q6. Give the steps of Construction:-

(e) Discrete frequency distribution

(f) Continuous frequency distribution.

Q7. Give the 7 principles of grouping data.