IGNOU Solved Assignments Free PDF Download 2020-21 ECO 07
Assignment is given 30% weightage in the final assessment. To be eligible to appear in the Term- End Examination, it is compulsory for you to submit the assignments as per the schedule. Before attempting the assignments, you should carefully read the instructions given in the Programme Guide.
Q.1 Compare between mean, median and mode to point out their merits and limitations.
Q.2 Differentiate between dispersion and skewness. If Karl Pearsons’s coefficient of skewness (SKp) = 0.06; mean = 150; variance of distribution= 2500 Find: median; mode & coefficient of variation.
Q.3 a) Discuss the usefulness of statistics and explain the limitations of statistics.
b) What is tabulation? Differentiate between classification and tabulation ?
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 | 4 | 12 | 8 | 6 |
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?
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
