Description
| University : | IGNOU |
|---|---|
| Program : | BCOM |
| Course Code : | ECO-07 |
| Course Title : | Elements of Statistics |
| Medium : | English Medium |
| Session : | July 2020 and January 2021 (2020-21) |
| Max Marks : | 100 |
| Weightage : | 30% |
| Last Date of Submission : | 1. Those who are enrolled in July 2020, it is valid up to June 2021. 2. Those who are enrolled in January 2021, it is valid up to December 2021. |
| Solution Type : | Softcopy (PDF File) |
TUTOR MARKED ASSIGNMENT
| Course Code | : ECO-05 |
|---|---|
| Course Title | : ELEMENTS OF STATISTICS |
| Assignment Code | : ECO-07/TMA/2020-21 |
| Coverage | : All Blocks |
Maximum marks: 100
Attempt all sections.
- What is statistical survey? Discuss the steps to be followed while conducting statistical survey.
- Central tendency, dispersion an skewness are three different measures to analyse numerical data. Comment.
- Calculate a) Mean, b) Variance and c) Standard deviation from the following frequency distribution:-
Classes Frequency 1-10 11 10-20 29 20-30 18 30-40 4 40-50 5 50-60 3 - a) What is the relationship between Mean. Median and Mode:
(i) Symmetrical curve
(ii) A negatively slewed curve
(iii) A positively skewed curve
b) For a frequency distribution: Q3-Q2 = 40 & Q2-Q1=60 Find coefficient of skewness. - Write short notes on the following –
a) Principle of preparing graphs.
b) Statistical Table
c) Data Array
d) Properties of Normal Curve.
Keywords: ECO-07, ECO07, ECO 07, ECO-7, ECO7, ECO 7
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