IGNOU| ELEMENTS OF STATISTICS (ECO - 07)| QUESTION PAPER – (JUNE - 2023)| (BDP)| ENGLISH MEDIUM
BACHELOR'S DEGREE PROGRAMME
(BDP)
Term-End Examination
June - 2023
Elective Course: Commerce
ECO-07
ELEMENTS OF STATISTICS
Time: 2 Hours
Maximum Marks: 50
Weightage: 70%
Note: Answer any five questions. All questions carry
equal marks. Simple calculator is allowed.
हिंदी माध्यम: यहां क्लिक करें
1. What are the functions of Statistics? Discuss. 10
2. What are the advantages and disadvantages of secondary
data? 5+5
3. (a) Explain in brief the convenience and judgement
sampling methods. 5
(b) Discuss the
significance of Tabulation. 5
4. Write short notes on any two of the following: 5+5
(a) Schedule
method of data collection
(b) Multiple bar
diagram
(c) Statistical
survey
5. Calculate the median from the following data: 10
|
Marks |
No. of Students |
|
0-10 10-20 20-30 30-40 40-50 50-60 |
4 6 20 10 7 3 |
6. Draw a pie diagram to represent the information
pertaining to a family's average expenditure: 10
|
Particulars |
Amount (Rs.) per day |
|
Food Clothing Rent Other expenses |
800 200 300 500 |
|
Total |
1,800 |
7. Compute Karl Pearson's coefficient of skewness from
the following data: 10
|
Classes |
Frequency |
|
0-10 10-20 20-30 30-40 40-50 50-60 |
4 6 20 10 7 3 |
Additional
information:
(a) Arithmetic
mean is 40.11.
(b) Standard
deviation is 2.96.
(c) Model class
is 39-42.
8. (a) Calculate the standard deviation from the
following information: 5
(b) Calculate combined standard deviation when: 5
***
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