IGNOU| ELEMENTS OF STATISTICS (ECO - 07)| QUESTION PAPER – (DEC

IGNOU| ELEMENTS OF STATISTICS (ECO - 07)| QUESTION PAPER – (DEC - 2023)| (BDP)| ENGLISH MEDIUM

BACHELOR’S DEGREE PROGRAMME (BDP)
Term-End Examination
December - 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 is Statistical Survey? Explain different steps in statistical survey. 10

2. Explain the following: 5+5

(i) Features of a good questionnaire

(ii) Properties of Arithmetic Mean

3. Find Arithmetic Mean of the following data: 10

Class Interval

Frequency

0-5

5-10

10-15

15-20

20-25

25-30

4. Given:

Q₁ = 31.75, Q₂ = 42.56, Q₃ = 62.62.

Find: 10

(i) Inter-quartile range

(ii) Quartile deviation

(iii) Coefficient of quartile deviation

5. You are given the following raw sums in a statistical survey of two variables X and Y:

Ten items are included in each survey. Compute standard deviation of the X and Y variables. 10

6. In a frequency distribution the coefficient of skewness based on quartiles (Bowley’s coefficient of skewness) is 0.6. If the sum of the upper and lower quartiles is 100 and median is 38, find the value of upper quartile and lower quartiles. 10

7. Explain the following: 5+5

(a) Histogram

(b) Pie diagram

8. Write short notes on the following: 5+5

(a) Application of Ratios

(b) Formal and Informal Interview

***

ELEMENTS OF STATISTICS SOLVED PAPERS PAGE LINK - Click here

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(Read Syllabus/ Assignment, Notes, Exam Routine, Question Papers and solved)

Also Read:

1. Indian History

2. CURRENT AFFAIRS

3. GK

4. MCQ SOLVED

IGNOU| ELEMENTS OF STATISTICS (ECO - 07)| QUESTION PAPER – (DEC - 2023)| (BDP)| ENGLISH MEDIUM