ECO-07 Elements of statistics
SOLVED ASSIGNMENT 2020-2021
Course Code : ECO-07
Course Title : ELEMENTS OF STATISTICS
Assignment Code : ECO-07/TMA/2020-21
Coverage : ALL BLOCKS
| Title Name |
ECO-07 Solved Assignment 2020-2021 |
| University | IGNOU |
| Service Type | Solved Assignment (Soft copy/PDF) |
| Course | BCOM |
| Language | ENGLISH |
| Semester | 2020-21 Course: BCOM |
| Session | 2020-2021 |
| Short Name | ECO-07 (ENGLISH) |
| Assignment Code | ECO-07/TMA/2020-21 |
| Product | Assignment of BCOM 2020-2021 (IGNOU) |
| Submission Date | You have to submit the assignment of all the courses to The Coordinator of your Study Centre. For appearing in June Term-End Examination, you must submit assignment to the Coordinator of your study centre latest by 15th March. Similarly for appearing in December Term-End Examination, you must submit assignments to the Coordinator of your study centre latest by 15th September. |
Q.1 Compare between mean, median and mode to point out their merits and
limitations.
(20)
Q.2 Differentiate between dispersion and skewness. If Karl Persons’s coefficient
of skewness (SKp) = 0.06; mean = 150; variance of distribution= 2500 Find:
median; mode & coefficient of variation.
(20)
Q.3 a) Discuss the usefulness of statistics and explain the limitations of
statistics.
(10)
b) What is tabulation? Differentiate between classification and tabulation ? (10)
Q.4 a) Calculate the quartiles Q1 and Q3 for wages of the labours given below:
Wages 30-32 32-34 34-36 36-38 38-40 40-42 42-44
Labourers 12 18 16 14 12 8 6
(10)
b) The consumption of number of guava and orange on a particular week
by a family are given below:
Number of
Guavas
3 5 6 4 3 5 4
Number of
Oranges
1 3 7 9 2 6 2
Which fruit is consistently consumed by the family?
(10)
Q.5 Write short notes on the following:
a) Law of statistical regularity
b) Non sampling errors
c) Factors Affecting Choice of Data
d) Lorenz Curve
ECO-07, ECO-7, ECO 07, ECO 7, ECO07, ECO
