CBSE Class 11 Economics Organisation of Data Worksheet Set D

 ORGANISATION OF DATA

I. ANSWER IN ONE SENTERENCE EACH

A. What does classification of data mean?

B.Choose the correct match from the following

A. Raw Data                                        I. Classified data in an ascending or descending order.

B. Chronological classification             II. Classification of data with reference to time

C. Continuous Variables                     III. Values that change only in finite jumps

D. Class Mid-Point                             IV. The difference between upper limit and the lower limit of a class

E. What is the main purpose of classifying raw data?

F. How is a discrete variable different from continuous variable?

G. What does frequency mean?

H. What is a bi-variate distribution?

I. Statistical calculations in classified data are based on: (Choose the correct alternative)

a. Actual value of the distribution
b. The upper class limit
c. The lower class limit
d. The class mid points

J. Under exclusive method: (Choose the correct alternative)

a. The upper class limit of a class is excluded in the class interval.
b. The upper class limit of a class is included in the class interval.
c. The lower class limit of a class is excluded in the class interval.
d. The lower class limit of a class is included in the class interval.

K. The class mid-point is equal to : (Choose the correct alternative)

a. The average of upper class limit and the lower class limit.
b. The product of upper class limit and the lower class limit
c. The ratio of upper class limit and the lower class limit

II. ANSWER IN AROUND 60 WORDS

A. How is the number of classes determined while constructing a frequency distribution?

B. How can we convert inclusive class interval into exclusive class interval?

C. When is a frequency distribution of unequal class interval suitable?

D. Explain how is size of each class determined?

III. Answer in around 75 words

a. What are the different ways of classifying raw data?

b. Classification of data into a frequency distribution has inherent draw backs. What are these draw backs?

c. Construct a frequency distribution for the following.

IV. Answer in around 100 words

a. Briefly explain the different steps involved in the constructing a frequency distribution.

b. Construct a frequency distribution for the following data

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